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niki

As mobile organisms, this sentient interface between body and world functions as a sequence of perceptions, in order to navigate, so our concept of time is of the point of the present moving past to future. Physics codifies it as measures of duration.

She lays out several of the current approaches to tackling space-time, some of which I take to make the distinction between space-time and matter relatively minimal. I find the devil in such things is in the construction of both tractable and beautiful mathematics and in proving or calculating enough that other people can see that there is some hope of it being useful.