block universe theory

trope-a-day

Trope-a-Day: You Can't Fight Fate

You Can’t Fight Fate: According to everything known about temporal mechanics, the universe is a block universe – which is to say, while local causality violations are possible (effects can, sometimes, precede causes), global causality violations are not (effects, nonetheless, always have causes). Or to put it another way, while

UNMOVED MONAD

It is widely believed that time travel is useless. After all, everyone knows the Block Universe Theory and its limitations: changing the past is impossible, and as such all grandfather paradoxes are banned. Predestination paradoxes are permitted, but obviously only create the already-known current state of affairs, rather than alter