giglifedaydreams asked: I was wondering, if all the energy and motion of the universe was in theory initiated at the big bang, does that mean the universe is gradually losing all of its kinetic energy and will eventually become void and motionless?
Congratulations! You just discovered the second law of thermodynamics (sort of)! The universe doesn’t necessarily “lose” kinetic energy, but it instead spreads out evenly and things stop having the ability to form complex structures because they can’t move. Without complex structures, the universe is disordered and the disorder (a.k.a. entropy) of the universe increases (no energy! can’t form stars or planets!) until there is total disorder and complete lack of motion. No information can be processed. This may probably happen sometime in the future.
