Brian Greene explains why space and time are part of a single continuum and why that means that everything that will ever happen HAS ALREADY HAPPENED somewhere in space-time.
As I try to explain in the book, this means it is pointless to worry about what might happen in the future. If it HAS ALREADY HAPPENED, what’s the point of worrying about it? All we can do it wait to catch up to the future to see what did/will happen.
“Past, present, future all equally exist.”