Ask HN: Coolest thing you learned in 2023?

In our world, there are processes that cannot be compressed into functions. For example, turbulent air is very chaotic. Lets say you take a room and divide it into a 3d grid, where each cell is 0.1x0.1x0.1mm in dimentions, and has some properties of air associated around it (velocity vector, density, temperature, pressure, e.t.c).

At some time T, that grid is going to have a new values in every cell through the physics of air and turbulence.

The main question is, can an AI learn a compressed equation to where the inputs are the grid initial values and time T, and the output is the accurate final grid values for every cell?And by compressed, I mean the entire network takes up less space than a computer program that simulates the interactions at every boundary.

Or the more general way to put it, could we simulate reality faster than reality is happening, and have AI learn some compressed version of it to where you can ask it 2 "states" of reality (like the initial conditions of today, and then some time in the future where you have more money in your bank account and no criminal record and are still alive), and it can output a set of actions for you to take.

The answer, while not 100% definite, is very highly likely to be no.

And then I got a bunch of geek friends together to cooperate with solving where the large explosions from the illegal fireworks come from. There are 5x in the group now with another couple coming online soon. Not to do anything with that except to confirm the science works over those distances, I was a kid once as well.

Anyway, the goal now is to find physical evidence that the localization was correct. In my area, there is lot of test data from the kind people that are setting off these large explosions. For that I am thankful :) Real life forensics can be fun :)

If I can find evidence that the indicated location was indeed where the explosion was set off then I will have verified that the localization can indeed be accurate over distances of almost 5km away, which is where one of the recorders is. Currently, I'm seeing a recurring pattern of explosions that appear to being set off in parking lot of a shopping area (Outside of a local Gamma in Limburg).

However, these fireworks do seem to destroy themselves pretty well, I haven't found physical evidence yet except for one that was very close (The next street), for that I found bits of the fireworks paper.

In any case, it will be quite a feat as right now the recorders are based 4.7km, 3k, > 2km sort of distances away from where they indicate that the most explosions are happening.

I had to check if it was OP because your reply doesn't go much in the line of thought I was expecting nor it actually replies the question.

If I understood right, you are talking about asking an AI to devise an infallible plan to make one rich that takes into account the changes in the world in realtime? Which would also need to take into account other AIs devising plans to make their users also rich. I agree that it won't 100% true one day.

It's pretty much the worst; you bring a child to this world without their consent. And the kid will live through the death of their parents, and then unavoidably die themselves. Read about antinatalism

Java

I have worked with C++, Python, Node, React and compared to all this Java seems so much fun to write and understand