#network switch

[geekanoids]

Speedy Ethernet from D-Link !!!

[wagoindia]

Understanding Relay Module Circuits: A Comprehensive Guide

Introduction:

Relay module circuits are essential components in various electronic and electrical applications. These circuits act as switches, allowing control signals from one circuit to activate or deactivate another circuit. Relay modules provide an efficient way to isolate high-power devices from low-power control systems, ensuring safety and protection. In this comprehensive guide, we will delve into the fundamentals of relay module circuits, their working principles, applications, and address some frequently asked questions (FAQs) to provide a complete understanding of this crucial aspect of modern electronics.

I. What is a Relay Module Circuit?

A relay module circuit consists of an electromechanical relay mounted on a PCB (Printed Circuit Board). The relay is an electromagnetic switch that is actuated by a control signal, which can be either digital or analog. When the control signal triggers the relay, it closes or opens the electrical contacts, allowing current to flow through the output terminals and control external devices or circuits.

II. How Does a Relay Module Circuit Work?

Electromagnetic Coil: The relay module circuit has an electromagnetic coil that serves as the input or control element. When an appropriate voltage is applied to the coil, it creates a magnetic field, causing the relay's armature to move.

Normally Open (NO) and Normally Closed (NC) Contacts: A relay typically has two sets of contacts: Normally Open (NO) and Normally Closed (NC). In the resting state, the NO contacts remain open, and the NC contacts remain closed.

Switching Action: When the coil is energized, the armature moves, causing the NO contacts to close and the NC contacts to open. This switching action completes or interrupts the circuit, depending on the application.

III. Types of Relay Module Circuits:

Single-Pole, Single-Throw (SPST) Relay: SPST relays have one set of contacts and can either be Normally Open or Normally Closed.

Single-Pole, Double-Throw (SPDT) Relay: SPDT relays have one set of normally open contacts and one set of normally closed contacts. When the relay is energized, the NO contacts close, and the NC contacts open.

Double-Pole, Single-Throw (DPST) Relay: DPST relays have two sets of contacts that operate simultaneously, making or breaking the circuit.

Double-Pole, Double-Throw (DPDT) Relay: DPDT relays have two sets of NO contacts and two sets of NC contacts. They provide two separate circuits that can be independently controlled.

IV. Applications of Relay Module Circuits:

Home Automation: Relay modules are commonly used in home automation systems to control lighting, heating, ventilation, and air conditioning (HVAC) systems.

Industrial Automation: In industrial automation, relay modules are used to control motors, pumps, solenoids, and other high-power devices.

Automotive Electronics: In automobiles, relay modules are utilized to control various electrical systems, such as headlights, windshield wipers, and electric windows.

Robotics: Relay module circuits are used in robotics to control the movement of actuators and motors.

Security Systems: In security systems, relay modules are used to trigger alarms and control access points.

V. Advantages of Using Relay Module Circuits:

Isolation: Relay module circuits provide galvanic isolation between the control circuit and the load, ensuring safety and protecting sensitive components.

Low Power Control: Relay modules allow low-power control systems to switch high-power devices, eliminating the need for high-power control circuits.

Versatility: Relay module circuits are available in various configurations and voltage ratings, making them versatile and suitable for a wide range of applications.

Simple Operation: Relay modules are easy to install and operate, making them a popular choice in many electronic applications.

FAQs:

Q1. Can relay module circuits be used for both AC and DC applications? Yes, relay modules are available in both AC and DC versions, allowing them to be used in a wide range of applications.

Q2. What is the difference between a relay and a relay module? A relay is the basic electromagnetic switch, while a relay module includes the relay mounted on a PCB with additional circuitry for ease of use and integration into other systems.

Q3. Can relay modules handle high-current applications? Yes, relay modules are available in different current ratings, and they can handle high-current applications as per their specifications.

Q4. How do I choose the right relay module for my application? When selecting a relay module, consider the voltage and current requirements of your application, the type of load (AC or DC), and the number of contacts needed.

Q5. Can I use a relay module to control multiple devices simultaneously? Yes, some relay modules have multiple sets of contacts (DPDT or more), allowing you to control multiple devices independently.

Conclusion:

Relay module circuits are versatile and indispensable components in modern electronics and electrical systems. Their ability to provide isolation, low-power control, and versatility makes them ideal for a wide range of applications in various industries. By understanding the working principles and different types of relay modules, along with their numerous applications, designers and engineers can make informed decisions when integrating these circuits into their projects. Relay module circuits continue to play a critical role in enhancing the efficiency and control capabilities of electronic systems, contributing to advancements in automation and smart technologies.

[zoysa]

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Social Quitting

In “Social Quitting,” my latest Locus Magazine column, I advance a theory to explain the precipitous vibe shift in how many of us view the once-dominant social media platforms, Facebook and Twitter, and how it is that we have so quickly gone asking what we can do to get these services out of our lives to where we should go now that we’re all ready to leave them:

https://locusmag.com/2023/01/commentary-cory-doctorow-social-quitting/

The core of the argument revolves around surpluses — that is, the value that exists in the service. For a user, surpluses are things like “being able to converse with your friends” and “being able to plan activities with your friends.” For advertisers, surpluses are things like “being able to target ads based on the extraction and processing of private user data” and “being able to force users to look at ads before they can talk to one another.”

For the platforms, surpluses are things like, “Being able to force advertisers and business customers to monetize their offerings through the platform, blocking rivals like Onlyfans, Patreon, Netflix, Amazon, etc” and things like “Being able to charge more for ads” and “being able to clone your business customers’ products and then switch your users to the in-house version.”

Platforms control most of the surplus-allocating options. They can tune your feed so that it mostly consists of media and text from people you explicitly chose to follow, or so that it consists of ads, sponsored posts, or posts they think will “boost engagement” by sinking you into a dismal clickhole. They can made ads skippable or unskippable. They can block posts with links to rival sites to force their business customers to transact within their platform, so they can skim fat commissions every time money changes hands and so that they can glean market intelligence about which of their business customers’ products they should clone and displace.

But platforms can’t just allocate surpluses will-ye or nill-ye. No one would join a brand-new platform whose sales-pitch was, “No matter who you follow, we’ll show you other stuff; there will be lots of ads that you can’t skip; we will spy on you a lot.” Likewise, no one would sign up to advertise or sell services on a platform whose pitch was “Our ads are really expensive. Any business you transact has to go through us, and we’ll take all your profits in junk fees. This also lets us clone you and put you out of business.”

Instead, platforms have to carefully shift their surpluses around: first they have to lure in users, who will attract business customers, who will generate the fat cash surpluses that can be creamed off for the platforms’ investors. All of this has to be orchestrated to lock in each group, so that they won’t go elsewhere when the service is enshittified as it processes through its life-cycle.

This is where network effects and switching costs come into play. A service has “network effects” if it gets more valuable as users join it. You joined Twitter to talk to the people who were already using it, and then other people joined so they could talk to you.

“Switching costs” are what you have to give up when you leave a service: if a service is siloed — if it blocks interoperability with rivals — then quitting that service means giving up access to the people whom you left behind. This is the single most important difference between ActivityPub-based Fediverse services like Mastodon and the silos like Twitter and Facebook — you can quit a Fediverse server and set up somewhere else, and still maintain your follows and followers:

https://pluralistic.net/2022/12/23/semipermeable-membranes/#free-as-in-puppies

In the absence of interoperability, network effects impose their own switching cost: the “collective action problem” of deciding when to leave and where to go. If you depend on the people you follow and who follow you — for emotional support, for your livelihood, for community — then the extreme difficulty of convincing everyone to leave at the same time and go somewhere else means that you can be enticed into staying on a service that you no longer enjoy. The platforms can shift the surpluses away from you, provided that doing so makes you less miserable than abandoning your friends or fans or customers would. This is the Fiddler On the Roof problem: everyone stays put in the shtetl even though the cossacks ride through on the reg and beat the shit out of them, because they can’t all agree on where to go if they leave:

https://doctorow.medium.com/how-to-leave-dying-social-media-platforms-9fc550fe5abf

So the first stage of the platform lifecycle is luring in users by allocating lots of surplus to them — making the service fun and great and satisfying to use. Few or no ads, little or no overt data-collection, feeds that emphasize the people you want to hear from, not the people willing to pay to reach you.

This continues until the service attains a critical mass: once it becomes impossible to, say, enroll your kid in a little-league baseball team without having a Facebook account, then Facebook can start shifting its surpluses to advertisers and other business-users of the platform, who will pay Facebook to interpose themselves in your use of the platform. You’ll hate it, but you won’t leave. Junior loves little-league.

Facebook can enshittify its user experience because the users are now locked in, holding each other hostage. If Facebook can use the courts and technological countermeasures to block interoperable services, it can increase its users’ switching costs, producing more opportunities for lucrative enshittification without the risk of losing the users that make Facebook valuable to advertisers. That’s why Facebook pioneered so many legal tactics for criminalizing interoperability:

https://www.eff.org/cases/facebook-v-power-ventures

This is the second phase of the toxic platform life-cycle: luring in business customers by shifting surpluses from users to advertisers, sellers, etc. This is the moment when the platforms offer cheap and easy monetization, low transaction fees, few barriers to off-platform monetization, etc. This is when, for example, a news organization can tease an article on its website with an off-platform link, luring users to click through and see the ads it controls.

Because Facebook has locked in its users through mutual hostage-taking, it can pollute their feeds with lots of these posts to news organizations’ sites, bumping down the messages from its users’ friends, and that means that Facebook can selectively tune how much traffic it gives to different kinds of business customers. If Facebook wants to lure in sports sites, it can cram those sites’ posts into millions of users’ feeds and send floods of traffic to sports outlets.

Outlets that don’t participate in Facebook lose out, and so they join Facebook, start shoveling their content into it, hiring SEO Kremlinologists to help them figure out how to please The Algorithm, in hopes of gaining a permanent, durable source of readers (and thus revenue) for their site.

But ironically, once a critical mass of sports sites are on Facebook, Facebook no longer needs to prioritize sports sites in its users’ feeds. Now that the sports sites all believe that a Facebook presence is a competitive necessity, they will hold each other hostage there, egging each other on to put more things on Facebook, even as the traffic dwindles.

Once sports sites have taken each other hostage, Facebook can claw back the surplus it allocated to them and use it to rope in another sector — health sites, casual games, employment seekers, financial advisors, etc etc. Each group is ensnared by a similar dynamic to the one that locks in the users.

But there is a difference between users’ surpluses and business’s surpluses. A user’s surplus is attention, and there is no such thing as an “attention economy.” You can’t use attention to pay for data-centers, or executive bonuses, or to lobby Congress. Attention is not a currency in the same way that cryptos are not currency — it is not a store of value, nor a unit of exchange, nor or a unit of account.

Turning attention into money requires the same tactics as turning crypto into money — you have to lure in people who have real, actual money and convince them to swap it for attention. With crypto, this involved paying Larry David, Matt Damon, Spike Lee and LeBron James to lie about crypto’s future in order to rope in suckers who would swap their perfectly cromulent “fiat” money for unspendable crypto tokens.

With platforms, you need to bring in business customers who get paid in actual cash and convince them to give you that cash in exchange for ethereal, fast-evaporating, inconstant, unmeasurable “attention.” This works like any Ponzi scheme (that is, it works like cryptos): you can use your shareholders’ cash to pay short-term returns to business customers, losing a little money as a convincer that brings in more trade.

That’s what Facebook did when it sent enormous amounts of traffic to a select few news-sites that fell for the pivot to video fraud, in order to convince their competitors to borrow billions of dollars to finance Facebook’s bid to compete with Youtube:

https://doctorow.medium.com/metaverse-means-pivot-to-video-adbe09319038

This convincer strategy is found in every con. If you go to the county fair, you’ll see some poor bastard walking around all day with a giant teddy bear that he “won” by throwing three balls into a peach-basket. The carny who operated that midway game let him win the teddy precisely so that he would walk around all day, advertising the game, which is rigged so that no one else wins the giant teddy-bear:

https://boingboing.net/2006/08/27/rigged-carny-game.html

Social media platforms can allocate giant teddy-bears to business-customers, and it can also withdraw them at will. Careful allocations mean that the platform can rope in a critical mass of business customers and then begin the final phase of its life-cycle: allocating surpluses to its shareholders.

We know what this looks like.

Rigged ad-markets:

https://en.wikipedia.org/wiki/Jedi_Blue

Understaffed content moderation departments:

https://www.dw.com/en/twitters-sacking-of-content-moderators-will-backfire-experts-warn/a-63778330

Knock-off products:

https://techcrunch.com/2021/12/08/twitter-is-the-latest-platform-to-test-a-tiktok-copycat-feature/

Nuking “trust and safety”:

https://www.reuters.com/technology/twitter-dissolves-trust-safety-council-2022-12-13/

Hiding posts that have links to rival services:

https://www.makeuseof.com/content-types-facebook-hides-why/

Or blocking posts that link to rival services:

https://pluralistic.net/2022/12/19/better-failure/#let-my-tweeters-go

Or worse, terminating accounts for linking to rival services:

https://blog.joinmastodon.org/2022/12/twitter-suspends-mastodon-account-prevents-sharing-links/

That is, once a platform has its users locked in, and has its business customers locked in, it can enshittify its service to the point of near uselessness without losing either, allocating all the useful surplus in the business to its shareholders.

But this strategy has a problem: users and business customers don’t like to be locked in! They will constantly try to find ways to de-enshittify your service and/or leave for greener pastures. And being at war with your users and business customers means that your reputation continuously declines, because every time a user or business customer figures out a way to claw back some surplus, you have to visibly, obviously enshittify your service wrestle it back.

Every time a service makes headlines for blocking an ad-blocker, or increasing its transaction fees, or screwing over its users or business customers in some other way, it makes the case that the price you pay for using the service is not worth the value it delivers.

In other words, the platforms try to establish an equilibrium where they only leave business customers and users with the absolute bare minimum needed to keep them on the service, and extract the rest for their shareholders. But this is a very brittle equilibrium, because the prices that platforms impose on their users and business customers can change very quickly, even if the platforms don’t do anything differently.

Users and business customers can revalue the privacy costs, or the risks of staying on the platform based on exogenous factors. Privacy scandals and other ruptures can make the cost you’ve been paying for years seem higher than you realized and no longer worth it.

This problem isn’t unique to social media platforms, either. It’s endemic to end-stage capitalism, where companies can go on for years paying their workers just barely enough to survive (or even less, expecting them to get public assistance and/or a side-hustle), and those workers can tolerate it, and tolerate it, and tolerate it — until one day, they stop.

The Great Resignation, Quiet Quitting, the mass desertions from the gig economy — they all prove the Stein’s Law: “Anything that can’t go on forever will eventually stop.”

Same for long, brittle supply-chains, where all the surplus has been squeezed out: concentrating all the microchip production in China and Taiwan, all the medical saline in Puerto Rico, all the shipping into three cartels… This strategy works well, and can be perfectly tuned with mathematical models that cut right to the joint, and they work and they work.

Until they stop. Until covid. Or war. Or wildfires. Or floods. Or interest rate hikes. Or revolution. All this stuff works great until you wake up and discover that the delicate balance between paying for guard labor and paying for a fair society has tilted, and now there’s a mob building a guillotine outside the gates of your luxury compound.

This is the force underpinning collapse: “slow at first, then all at once.” A steady erosion of the failsafes, flensing all the slack out of the system, extracting all the surpluses until there’s nothing left in the reservoir, no reason to stay.

It’s what caused the near-collapse of Barnes and Noble, and while there are plenty of ways to describe James Daunt’s successful turnaround, the most general characterization is, “He has reallocated the company’s surpluses to workers, readers, writers and publishers”:

https://tedgioia.substack.com/p/what-can-we-learn-from-barnes-and

A system can never truly stabilize. This is why utopias are nonsense: even if you design the most perfect society in which everything works brilliantly, it will still have to cope with war and meteors and pandemics and other factors beyond your control. A system can’t just work well, it has to fail well.

This is why I object so strenuously to people who characterize my 2017 novel Walkaway as a “dystopian novel.” Yes, the protagonists are eking out survival amidst a climate emergency and a failing state, but they aren’t giving up, they’re building something new:

https://locusmag.com/2017/06/bruce-sterling-reviews-cory-doctorow/

“Dystopia” isn’t when things go wrong. Assuming nothing will go wrong doesn’t make you an optimist, it makes you an asshole. A dangerous asshole. Assuming nothing will go wrong is why they didn’t put enough lifeboats on the Titanic. Dystopia isn’t where things go wrong. Dystopia is when things go wrong, and nothing can be done about it.

Anything that can’t go on forever will eventually stop. The social media barons who reeled users and business customers into a mutual hostage-taking were confident that their self-licking ice-cream cone — in which we all continued to energetically produce surpluses for them to harvest, because we couldn’t afford to leave — would last forever.

They were wrong. The important thing about the Fediverse isn’t that it’s noncommercial or decentralized — it’s that its design impedes surplus harvesting. The Fediverse is designed to keep switching costs as low as possible, by enshrining the Right Of Exit into the technical architecture of the system. The ability to leave a service without paying a price is the best defense we have against the scourge of enshittification.

(Thanks to Tim Harford for inspiring this column via an offhand remark in his kitchen a couple months ago!)

[Image ID: The Phillip Medhurst Picture Torah 397. The Israelites collect manna. Exodus cap 16 v 14. Luyken and son.]

[insert-creative-name-94]

Gonna need some Courage out there!

[codingquill]

Network switches

What’s a network switch ?

A switch is a device used in computer networks to connect multiple devices together within a single local area network (LAN). Its main role is to facilitate communication between different connected devices, such as computers, printers, servers, IP phones, etc.

It is a mini-computer which is made up of RAM, ROM, flash RAM, NVRAM, a microprocessor, connectivity ports and even an operating system.

RAM

RAM (Random Access Memory) contains the current configuration of the switch and temporarily stores the MAC address table, which is then processed by the microprocessor.

Microprocessor

The microprocessor is the heart of the switch, responsible for data processing, including switching and creating links between multiple devices.

External memories

External memories, such as flash RAM, ROM, and NVRAM (Non-Volatile RAM), store configuration files , different versions of the IOS , etc ...

Ports

The switch ports are the communication interfaces of the switch. There are several of them, generally 24 for a Cisco switch. Each port is associated with an LED which indicates its status and activity.

How does it work ?

Now how does a switch work to transfer information from one machine to another?

Suppose we have 4 machines: A, B, C and D connected to our switch in ports 1, 2, 3 and 4 as follows:

The switch only works with MAC addresses , so basically we have an empty MAC address table stored in RAM as soon as the switch starts up which looks like this : 

Transmitting data from machine A to machine B happens in the following steps:

Machine A sends a frame to machine B

Once this frame arrives at port 1 (which is the one linked to A), the switch reads the source MAC address and stores it in the MAC address table

The switch reads the destination MAC address and looks for it in the table, if it is not in the table, it broadcasts to all the active machines connected to the switch except the source one.

If the port linked to the machine we want is active, it sends a response frame from which the switch reads the MAC address we were looking for (@B)

Once done, it records the MAC address of B in the table.

This process repeats until the switch reaches what is called "MAC address table stability", that is to say it knows all the MAC addresses of the connected machines and has no more need to broadcast.

Starting and configuring a switch

When it comes to booting a switch, the process is similar to that of a traditional computer system:

POST (Power-On Self Test): The switch performs proper functioning tests on all hardware.

Loading IOS (Internetwork Operating System): The switch operating system is loaded.

Loading the configuration. At this stage we have two cases:

Either the switch already has a startup configuration defined and stored in NVRAM

Either the switch is blank and it is up to us to define the startup configuration when it goes to setup mode

Switch configuration

The configuration of a switch is done through different modes, such as user mode, privileged mode and global configuration mode, which allows access to specific configuration modes, such as interface mode, routing mode, line mode, etc.

And to do all this of course you must first connect the switch with the machine via the console cable and open a terminal emulator

💡 It should be noted that the only machine that can configure the switch is the one connected to it by a console cable, the others are only hosts.

[kstarlitchaotics]

Those who has the network the old shows are coming back!!

[wagoindia]

Enhancing Efficiency and Performance with Network Switches in PLC Programming

Introduction:

In the world of industrial automation, Programmable Logic Controllers (PLCs) are the backbone of control and monitoring processes. PLCs facilitate seamless communication between various devices, sensors, and actuators in an industrial network. To ensure optimum efficiency and performance in PLC programming, the choice of network infrastructure is critical. Network switches play a pivotal role in enhancing the efficiency of PLC programming by providing reliable and efficient data transmission. In this article, we will explore how network switches contribute to improved PLC programming efficiency and performance, along with addressing some frequently asked questions (FAQ) to provide comprehensive insights into this essential aspect of industrial automation.

I. The Role of Network Switches in PLC Programming:

Network switches serve as the foundation of communication in industrial networks. They facilitate data exchange between PLCs, Human-Machine Interfaces (HMIs), Input/Output (I/O) devices, and other networked components. Network switches use advanced switching technology to establish a seamless and high-speed connection between devices, ensuring real-time data transmission and timely execution of control commands.

II. Enhancing Efficiency in PLC Programming:

Faster Data Transmission: Network switches offer high data transfer rates and low latency, enabling faster communication between PLCs and connected devices. This ensures real-time monitoring and control, enhancing overall system efficiency.

Reduced Network Congestion: Network switches efficiently manage data traffic, reducing network congestion and minimizing the risk of data collisions. This leads to smoother PLC programming execution and improved system response times.

Segmentation and VLANs: Network switches support Virtual Local Area Networks (VLANs), allowing the logical segmentation of the network. This segregation enhances security, simplifies network management, and facilitates better organization of PLC programming tasks.

Quality of Service (QoS): QoS features in network switches prioritize critical data packets, ensuring that essential PLC programming data is delivered promptly. This helps maintain consistent performance and reliability, even during high network loads.

Network Redundancy: Redundant network switches can be deployed to create fault-tolerant network architectures. In case of a Power Supply switch failure, the redundant switch takes over seamlessly, minimizing downtime and enhancing system reliability.

III. Improving Performance in PLC Programming:

Deterministic Communication: Network switches support deterministic communication, ensuring that PLC programming data packets reach their destination without delay or interference. This predictability enhances the accuracy and precision of control commands.

Jitter and Latency Reduction: By eliminating data collisions and providing dedicated communication paths, network switches reduce jitter and latency in PLC programming. This results in improved system responsiveness and stability.

Scalability: Industrial network switches come in various port configurations, offering scalability to accommodate growing PLC programming needs. They can easily be expanded to add more devices and support larger networks.

Compatibility with Industrial Protocols: Network switches support various industrial protocols like PROFINET, EtherNet/IP, and Modbus TCP, ensuring seamless integration with PLCs and other devices using these protocols.

Enhanced Diagnostics and Monitoring: Managed network switches provide comprehensive diagnostic tools and monitoring features. These capabilities enable proactive maintenance and troubleshooting, leading to improved PLC programming performance.

FAQ:

Q1. Can I use unmanaged switches for PLC programming?

While unmanaged switches can be used for basic PLC programming tasks, managed switches offer greater control and optimization options. Managed switches are recommended for larger networks and critical applications where enhanced performance and diagnostics are needed.

Q2. Are network switches necessary for small-scale PLC programming setups?

Even in small-scale PLC programming setups, network switches can enhance communication efficiency, reduce network collisions, and improve overall system performance. They ensure seamless data transfer between PLCs and connected devices.

Q3. What is the significance of VLANs in PLC programming?

VLANs allow logical segmentation of the network, creating isolated groups that improve network security and simplify PLC programming management. They enhance data organization and access control, ensuring a more efficient and secure network.

Q4. How do redundant network switches improve PLC programming reliability?

Redundant network switches create fault-tolerant architectures. In the event of a network switch failure, the redundant switch takes over, maintaining uninterrupted PLC programming communication and preventing downtime.

Q5. Can I integrate managed network switches with existing PLC programming setups?

Yes, managed network switches can be seamlessly integrated into existing PLC programming setups. Their compatibility with standard industrial protocols ensures smooth communication with PLCs and other devices in the network.

Conclusion:

Network switches play a vital role in enhancing the efficiency and performance of PLC programming in industrial automation. They enable faster data transmission, reduced network congestion, and deterministic communication, leading to improved system responsiveness and stability. By supporting features like VLANs, QoS, and network red undancy, network switches contribute to streamlined PLC programming management and increased system reliability. Industrial network switches are essential components that pave the way for efficient and seamless communication, ensuring smooth and precise control in industrial automation applications. By understanding the role of network switches and their benefits, industries can optimize PLC programming efficiency and achieve superior performance in their automation processes.

[wigglebox]

well now i literally have no reason to watch the CW again ever. good fucking riddance i fucking hate that stupid network

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work is so beautifil when. you imagine that your hyperfixation is also working that same job. Last job i had pastel well laura write a fic what if greg worked at an ice skate ring and tom came to skate and then they of course yaoied it up. for the last hour of work yesterday to stop myself from jumping off the slide tower i imagined what if mark worked at a pool for the summer and then eduardo was lifeguard and As every day passes im detailing a 200,000 word fic based upon that that will only ever exist in my imagination and to never leave yassssss.

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