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Spencer Ferri

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Is the universe a computer simulation

Scientists have decided that they can test to see whether or not the universe is a simulation being run by some advanced civilization.

"Essentially, Savage said that computers used to build simulations perform "lattice quantum chromodynamics calculations" - dividing space into a four-dimensional grid. Doing so allows researchers to examine the force which binds subatomic particles together into neutrons and protons - but it also allows things to happen in the simulation, including the development of complex physical "signatures", that researchers don't program directly into the computer. In looking for these signatures, such as limitations on the energy held by cosmic rays, they hope to find similarities within our own universe."

Basically, if the simulated universe shares certain unintended, unprogrammed similarities with our universe, then our universe may be a simulation.

What I don't quite understand is - why isn't vice-verca a more realistic scenario? That is, if the simulation shares certain similarities with our universe, maybe it's just a good simulation?

http://www.huffingtonpost.co.uk/2012/10/11/physicists-may-have-evide_n_1957777.html
http://www.huffingtonpost.co.uk/2012/12/12/physicists-universe-simulation-test-university-of-washington-matrix_n_2282745.html

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    Dec 17 2012: We live in one universe. As we speak there are many simulated universes in existence just on Earth. Our one Universe contains billions of habitable planets so there are probably billions of simulated universes running right now. There are therefore billions of simulated universes for each one real one. The chances that ours is real are therefore billions to one.
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      Dec 17 2012: That is, if. Statistically speaking we only know of one planet which is inhabited, which doesn't make for very good statistics. We know there are many planets, and that it's not altogether rare for planets to be within the habitable ring, and that organic matter can occur outside of the earth. There's also signs that moons could possibly be habitable. But still only one planet with signs of life ever having existed!

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