system
Given the following post, respond as if you're commenting on Reddit:
human
Ok... so what kind of processing power do we not have that it would have to take, to attribute all our known physics into a computer simulator? Consequently for running anything and everything 'real life' inside of a video game?

I guess since it takes our universe to hold all the laws of physics that it does, then it might be very unrealistic to imagine some computer program that implements it all as well? Are the numbers real though and calculable for what it would take? Is there a chance you could really make a video game that looks normal, but really, any action is based on every atom and molecule and force it consists of, and would literally mimic real life? I.E., a real/true simulator?

edit: thanks for all the awesome replies, everyone! I had a great time reading!
gpt
Something to give you an idea:

Suppose you have a mole of nitrogen gas at standard temperature and pressure.  That's 6.02 x 10^23 molecules.

Each one of those molecules will have 1.3 x 10^9 collisions per second, on average.

That's 8 x 10^32 collisions per second.  And that just describes the behavior of whole molecules.  You still have to deal with the electrons, etc.

A computer is pretty fast if it can do a petaflop (10^15 floating point operations per second).

To model just the kinetics of a mole of nitrogen gas, you would need 8 x 10^17 of those computers.  To put this into perspective, the oceans contain approximately 1 x 10^19 gallons of water.