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A comment on Simulation of a 2B-atom cell that metabolizes and grows like a living cell. Parent comment

Re:Simulation of a 2B-atom cell that metabolizes and grows l... by feoren on Friday January 28, 2022 @01:57PM (#30118854)
I wouldn't say that "all our current theories" are set in continuous spacetime. For example, Quantum chromodynamics is set in SU(3), an 8-dimensional group of rotation-like matrices. Electric charge is discrete, spin is discrete, electron orbitals are discrete. In fact position and momentum would seem to be the outlier if they were not also discrete. I hardly call that "no reason".
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Re:Simulation of a 2B-atom cell that metabolizes and grows l... by whatshisface on Friday January 28, 2022 @02:13PM (#30119026)
SU(3) is a continuous group.
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Re:Simulation of a 2B-atom cell that metabolizes and grows l... by freemint on Friday January 28, 2022 @04:20PM (#30120511)
Yeah but it is very much not in space time.
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Re:Simulation of a 2B-atom cell that metabolizes and grows l... by whatshisface on Friday January 28, 2022 @05:35PM (#30121404)
But it is. SU(3) is the group for swapping colors around. It still has spacetime.
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Re:Simulation of a 2B-atom cell that metabolizes and grows l... by freemint on Friday January 28, 2022 @05:37PM (#30121422)
You can Cartesian product it with space time, yes. But that is possible for any system.
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Re:Simulation of a 2B-atom cell that metabolizes and grows l... by whatshisface on Friday January 28, 2022 @06:24PM (#30121904)
I'm having a hard time imagining quantum chromodynamics set in a single point. :)
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Re:Simulation of a 2B-atom cell that metabolizes and grows l... by drdeca on Friday January 28, 2022 @04:54PM (#30120895)
It is based on SU(3), but, does it really make sense to say that it isn't still set in spacetime? Like, quarks still have position operators, yes?
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