#but thise strings that loop into other strings are more sturdy and will be most of what you see in a trouser

[jucomx]

I just realised that Terry Pratchett's "trousers of history" is actually quite a decent physical interpretation of how time could work.

Because a lot of random fluctuations are so inconspicuous that they are in practice entirely reversible. So most of the random events (i.e. photon-matter conversion or nuclear decay level, not like pebble down a hill level) that happen from a certain point in time do not prevent the universe from returning to roughly the same state some time later. As such most of the points in a state-time plot would be surrounded by similar possible states, and only really big events will noticeably split these into multiple states.

Now trousers are the way it would "look" when such a "big event" occurs, but "big events" on a quantum scale are still imperceptible on a human scale. So all these tiny splits would kind of weave together in similar-to-humans states and then only some of the time this fabric would drift apart in a humanly perceptible change.

In conclusion: what Terry Pratchett describes as trousers of time would, according to thermodynamic principles (applied to quantum mechanics but thermodynamics is quite flexible actually) be fractal trousers where the fabric of every trouser is made up of a bunch of smaller trousers until you get all the way down to the quantum level, where a trouser is just 2 lines (2 lines that split every planck time and occasionally more than 2 lines and that aren't necessarily equally likely at all, but in essence it is 2 lines and thus a really tiny pair of trousers).