Can a piece of space-time having 3 spacial dimensions and 1 dimension of time be viewed as a particle? Could this piece of space-time have properties of its own (mass, spin, charge) independent of the energy that it coexists with? How small would it be, and how much mass does a "volume time" of space time have? Like, say a $light second^3s$?. Also, since time can be measured forwards or backwards could you have a -$light second^3s$
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4Possible duplicate of Is spacetime discrete or continuous?, Does the Planck scale imply that spacetime is discrete?. – AccidentalFourierTransform Aug 25 '19 at 19:35
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1Regardless of whether space-time has a smallest piece, I am interested in whether a region of space-time can be viewed as a particle with properties. @AccidentalFourierTransform – Joseph Hirsch Aug 25 '19 at 19:55