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This makes me believe simulation theory even more tbh. Quantum mechanics exist to fuse operations, altogether making simulating our universe more computationall

This makes me believe simulation theory even more tbh. Quantum mechanics exist to fuse operations, altogether making simulating our universe more computationally inexpensive.

lessaligned 3y ago
There's an even deeper way to thing about it: if you actually want to parallellize the simulation of multiple scenarios, or if you're running smth. that needs to compute smth in >4d, quantum mechanics + parallel universes" might be the computationally optimal way to do it! ...we don't think about it this way often because we'd be thinking about computational problems so huuuuge that we'd be like the quarks inside the atoms inside the transistors inside plannet-sized clusters spanning galaxies to even fathom computing it ...and it's not necesarily a feel-good perspective :) I mean, even the speed-of-light limit and general relativity seem like optimizations you'd do in order to better parallelize something you need to compute on some unfathomable "hardware" in some baseline-reality that might not have the same constraints... ...and to finish the coffee-high-rant: if you want FTL you probably can't get it "inside" because it would break the simulation, you'd need to "get out" ...or more like "get plucked out" by some-thing/god :P (ergo, when we see alien artifacts UFOs etc. that seemed to have done FTL... we kind of need to start assuming MORE than _their_ existence and just them being 'more advanced' than us)
- odyssey7 3y ago
  There’s something about this that swallows its own tail, the optimal way to simulate a universe using computing theory available in that universe.
eigenket 3y ago
People write this sort of thing a lot, and I don't really understand it. Simulating quantum systems is dramatically (formally speaking exponentially) more expensive than simulating classical ones (at least as far as our current understanding of complexity theory goes). If you're going to simulate a universe, and you want to cheap-out on computer power, then you should simulate a classical one.

This makes me believe simulation theory even more tbh. Quantum mechanics exist to fuse operations, altogether making simulating our universe more computationally inexpensive.

lessaligned 3y ago

There's an even deeper way to thing about it: if you actually want to parallellize the simulation of multiple scenarios, or if you're running smth. that needs to compute smth in >4d, quantum mechanics + parallel universes" might be the computationally optimal way to do it! ...we don't think about it this way often because we'd be thinking about computational problems so huuuuge that we'd be like the quarks inside the atoms inside the transistors inside plannet-sized clusters spanning galaxies to even fathom computing it ...and it's not necesarily a feel-good perspective :) I mean, even the speed-of-light limit and general relativity seem like optimizations you'd do in order to better parallelize something you need to compute on some unfathomable "hardware" in some baseline-reality that might not have the same constraints... ...and to finish the coffee-high-rant: if you want FTL you probably can't get it "inside" because it would break the simulation, you'd need to "get out" ...or more like "get plucked out" by some-thing/god :P (ergo, when we see alien artifacts UFOs etc. that seemed to have done FTL... we kind of need to start assuming MORE than _their_ existence and just them being 'more advanced' than us)

odyssey7 3y ago
There’s something about this that swallows its own tail, the optimal way to simulate a universe using computing theory available in that universe.

eigenket 3y ago

People write this sort of thing a lot, and I don't really understand it. Simulating quantum systems is dramatically (formally speaking exponentially) more expensive than simulating classical ones (at least as far as our current understanding of complexity theory goes). If you're going to simulate a universe, and you want to cheap-out on computer power, then you should simulate a classical one.