Prediction: Most software won't run on code in the future

Are you jaded about the trend where as hardware gets better, software gets less efficient and more bloated? Buckle up because it's about to get a lot weirder.

As AI inference trends towards faster and cheaper, and as the models' accuracy improves, there may come a time where a computer is no longer running on code; it's running on the AI telling it what to do in real time. Now you might think, isn't that the same as AI writing code? No it's not; the AI won't need to write code anymore; it will sit between the user and low-level operations in real time, and decide immediately what pixels to show the user and what I/O operations to do based on the context and the user input.

How did I come up with this [dumbass|genius] idea you might ask. One of the holy grails of software engineering is to eliminate bugs. Obviously bugs can't be completely eliminated outright, but if you'll notice, most bugs have a clear intended behavior. The next time you encounter a software bug, ask yourself whether the bug would've happened if, instead of software controlling everything, it were a human with very good memory that could think at 1000x speed.

Won't this introduce a ton of other bugs and unexpected behavior, you might ask. Yes, that's why I agree my idea sounds ridiculous, and would only work if AI models became really good and really fast.

Can a giant neural net really replace a huge amount of code like an entire operating system? It seems like a crazy idea, but crazier things have happened in the past (like the fact that text and images can be generated coherently today would've been considered pretty crazy 10 years ago, which for some reason people now dismiss saying "of course computers can do that" just because it's not as good as a human).

We can see an extremely nascent version of a similar idea in DeepMind's Genie 3, which generates pixels directly rather than using game state as an intermediary (the game state is actually stored in the neural net itself with no manually coded logic)

Circular Time Travel isn't Paradoxical

When I was younger I remember always being pissed at those movies with the typical circular logic time travel loop: The protagonist is convinced through some event to travel back in time. They end up causing the events which convinced them to travel through time in the first place and ultimately either couldn’t or wouldn’t change the past. I thought this was paradoxical, because it relied on circular logic, and if at any point the protagonist broke the chain they could’ve changed the past and the whole movie wouldn’t make any sense.

But then I watched Dark (which I loved, until they ruined it with a feel-good ending about being able to change your fate), and it occurred to me that time loops aren’t necessarily paradoxical. After all what’s stopping the existence of a loop where everyone agrees to and somehow serendipitously does everything right in order to make the loop self-consistent? All it requires it everyone in the universe is either unwilling or unable to change their pasts. 

As for what happens if anyone in the universe is willing or able to change their past, the answer is simple: Such a universe could not have existed in the first place. Therefore by the anthropic principle, the only time loops that can exist, are those were everyone is unwilling or unable to change it.

For this same reason, it’s silly for time travel protagonists to worry about causing a paradox, because if they were able to cause a paradox the entire universe they inhabit couldn’t have existed in the first place. Then again, it's also fair to say that their illogical worrying is what allows that whole universe to exist in the first place. Just know that if time travel were possible in real life, you wouldn't need to worry about causing a paradox, because the fact you and your universe exist guarantees it's logically impossible for you to cause a paradox.

Remember: A time loop cannot change over time! Imagining a time loop as a looping video where people can change over each iteration, and/or winking in or out of existence “over time” (like the end of Dark) is illogical because a time loop already includes time. 

Note: Regarding the idea it's paradoxical because you don't know what "caused" the time loop itself: I think this stems from a misconception that a time loop can be caused or created at some point in time, rather than simply existing. The concept of cause and effect only make sense within a causal chain. If you ask what caused a causal chain itself, it's naturally unanswerable, just like the question of what caused the first cause of our universe. Here is the reddit argument which inspired this post.

Note: this post purposely ignores the “branching universes” model of time travel because it’s a cop-out that avoids all paradoxes trivially because you don’t need to tie together any loose ends.