system
Given the following post, respond as if you're commenting on Reddit:
human
[Total Recall] How can i tell if i am inside a simulation?

Do i get a totem like in Inception?
gpt
The best method is to test the limits of the simulation and look for things that would be the result of optimizations or rounding errors. You can either use very large distances (travel really far away from your current location, or use a telescope to look for details like variable stars) or very small ones to do this (use a microscope to look for microorganisms, use an electron microscope to look at individual atoms).

Notably, all of these methods are currently beings used by scientists to learn more about the laws of physics that govern our universe.