So i've done a lot of reading and there's one thing that really sticks out to me. One of the most widely accepted theories is that dark energy will continue to accelerate the expansion of the universe itself until that expansion moves faster than the speed of light. But some other things that i've read about say that empty space itself is made of particles, and the general assumption is that no particle that exists can move faster than light. So at the very end of the universe during heat death, space, made of particles, would be expanding so fast that particles like photons could never have hope of interacting with each other, even though that violates the very core of the theory of relativity. It's just really confusing to me, and I was wondering, what were your thoughts?
tl;dr how can space expand faster than the speed of light if thats the fastest anything can move.
tl;dr how can space expand faster than the speed of light if thats the fastest anything can move.