Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It's 100% free.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

So I know there are equations that give you the total energy in the Universe(Friedman).

So about if we we to simulate every single interaction from neurons to physical forces, strong and weak, gravity, electromagnetic, every single interaction between bosons, quarks, electrons, neutrons, atoms, molecules, etc. Basically everything with regard to the knowledge that we currently have.

For example in the wiki page for mind uploading, there are estimates that to computationally model the neurons for one person using a 'Stochastic behavior of single molecules' algorithm will take approx, 10E43(CPU FLOPS) and 10E14(Memory) and it wont be till about the year 2111 till his can be done, now that is for the neurons of one person, multiply that by all the billions of people etc.. Then take into account everything else, absolutely everything that can be computationally modeled by an equation.

Yes it would be quite some amount of processing power, is there anyway to approximate how much we would need?

share|cite|improve this question

closed as off-topic by Kyle Kanos, Jim, Brandon Enright, Qmechanic Apr 6 '14 at 16:07

  • This question does not appear to be about physics within the scope defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question. ... I mention this paper, not because I believe its particular answer, but just because it attempts the calculation. – Mitchell Porter Apr 5 '14 at 9:56
This question appears to be off-topic because it is a hypothetical question about computational power and not about physics. Perhaps electronics.stackexchange might be more suited for this question? – Kyle Kanos Apr 5 '14 at 17:15

I would guess that it will never be possible to simulate each and every physical interaction in the universe.

Not only because there is a huge amount of particles in the universe but because we would have to simulate the simulating machine also. The simulating machine (computer or whatever might follow) is made up of elementary particles like the rest of the world. A true simulation of every interaction happening in the universe would have to include a simulation of this very machine, which makes it absoluteley impossible to simulate "everything".

share|cite|improve this answer
That is a interesting comment, it's like what you are saying is you can't create the God that created everything in the first place. – user42770 Apr 5 '14 at 10:25

Not the answer you're looking for? Browse other questions tagged or ask your own question.