Mmm. That presupposes infinite linear time. By most accounts, "this life" bookends about 13.7 billion years of linear time, but how do we understand the state o

Mmm. That presupposes infinite linear time. By most accounts, "this life" bookends about 13.7 billion years of linear time, but how do we understand the state of things before that? How could we understand the state of things once the heat death of the universe is a distant cosmic memory, and entropy no longer provides an "arrow of time"?