#digital physics

[teledyn]

Could the Universe be a giant quantum computer?

“I think if he had had a more conventional education, if he’d come up through the ranks and had taken the standard physics courses and so on, maybe he would have done less interesting work.”

[gettothedancing]

In his 2014 book, Our Mathematical Universe, physicist Max Tegmark boldly claims that “protons, atoms, molecules, cells and stars” are all redundant “baggage.” Only the mathematical apparatus used to describe the behavior of matter is supposedly real, not matter itself. For Tegmark, the universe is a “set of abstract entities with relations between them,” which “can be described in a baggage-independent way”—i.e., without matter. He attributes existence solely to descriptions, while incongruously denying the very thing that is described in the first place. Matter is done away with and only information itself is taken to be ultimately real. This abstract notion, called information realism is philosophical in character, but it has been associated with physics from its very inception. Most famously, information realism is a popular philosophical underpinning for digital physics. The motivation for this association is not hard to fathom. Indeed, according to the Greek atomists, if we kept on dividing things into ever-smaller bits, at the end there would remain solid, indivisible particles called atoms, imagined to be so concrete as to have even particular shapes. Yet, as our understanding of physics progressed, we’ve realized that atoms themselves can be further divided into smaller bits, and those into yet smaller ones, and so on, until what is left lacks shape and solidity altogether. At the bottom of the chain of physical reduction there are only elusive, phantasmal entities we label as “energy” and “fields”—abstract conceptual tools for describing nature, which themselves seem to lack any real, concrete essence. To some physicists, this indicates that what we call “matter,” with its solidity and concreteness—is an illusion; that only the mathematical apparatus they devise in their theories is truly real, not the perceived world the apparatus was created to describe in the first place. From their point of view, such a counterintuitive conclusion is an implication of theory, not a conspicuously narcissistic and self-defeating proposition. Indeed, according to information realists, matter arises from information processing, not the other way around. Even mind—psyche, soul—is supposedly a derivative phenomenon of purely abstract information manipulation. But in such a case, what exactly is meant by the word “information,” since there is no physical or mental substrate to ground it?

[vorbisx]

Replacing physical buttons and controls with touchscreens also means removing accessibility features. Physical buttons can be textured or have Braille and can be located by touch and don't need to be pressed with a bare finger. Touchscreens usually require precise taps and hand-eye coordination for the same task.

Many point-of-sale machines now are essentially just a smartphone with a card reader attached and the interface. The control layout can change at a moment's notice and there are no physical boundaries between buttons. With a keypad-style machine, the buttons are always in the same place and can be located by touch, especially since the middle button has a raised ridge on it.

Buttons can also be located by touch without activating them, which enables a "locate then press" style of interaction which is not possible on touchscreens, where even light touches will register as presses and the buttons must be located visually rather than by touch.

When elevator or door controls are replaced by touch screens, will existing accessibility features be preserved, or will some people no longer be able to use those controls?

Who is allowed to control the physical world, and who is making that decision?

[itskatieclearly]

The past month~

[mercuryflan]

“Checkmate dance”

Just them walking around after one of their adventures.

[redpapercraness]

i cant stand this motherfucker

[artbyaj497]

Chronic pain things😎

[sawthoone]

“rest easy, friend.”

[laddersofsweetmisery]

I don't see enough people mourning over the slow death of physical media. And I don't just mean TV shows, video games, or movies--which don't even get me started about how we don't really 'own' anything anymore. It includes notes, journals, and letters to one another...so much of our history is lost when we lose a password, a website goes down, a file/hardware is corrupted, or a platform disappears. History that doesn't seem important until you no longer have access to it. Physical media does a lot for memory recall. How many memories will we lose because we don't have something tangible to tie it back to? Something to hold in our hands and stir up those memories we thought were once lost? Sometimes I wonder what the difference between burning a book and losing access to physical media is when someone can pull the plug and remove your access so easily.

[czowwlart]

He's got moves 🎶🕺💃

[cosmosnout]

I’ve missed drawing him

[hmura-hmara]

My obsession with Luke has yet to end..

[fogmoo]

quick Kabru and Laios fanart 🌼^^

[tchaikovskaya]

I will defend teaching kids to read and write in cursive with my dying breath sorry im with the boomers on this one

ETA: YALL STARTED BEING ANNOYING IN THE NOTES SO NO MORE REBLOGS FOR YOU!!!

[nigelgraz]

My new Astarion WIP that i already love <3

[aurosoulart]

JUST FINISHED THIS !!! here is a quick look because I am excited