T-Rex: One universe over, people's bodies aren't on teams with their minds. Instead, their bodies actually SABOTAGE them. Different body parts can fail whenever, with this chance of failure increasing over time until it reaches 100%!

T-Rex: They call this process, "aging"!

T-Rex: And "aging" affects everyone! The greatest of them "age" just as quickly as even the suckiest of dudes. No, wait! BETTER IDEA! SOMETIMES, a sucky dude will live a super long time and a truly great dude's body will poot out early on. So it's really unfair and unpredictable!
T-Rex: WAY better for dramatic tension.

Utahraptor: But "aging" isn't the only way to die, right?
T-Rex: Hah! Absolutely not!

T-Rex: Basically, every single other thing in the universe can kill 'em too. Even inanimate objects! Seriously! Inanimate objects literally kill people here. Whenever an inanimate object pulls that off, they call it an "accident".
Utahraptor: Does the inanimate object go to jail?
T-Rex: RARELY IF EVER.

T-Rex: Okay so the twist was that this universe is actually our universe, but in retrospect that was obvious and I'm sad now so - PEACE OUT, SUCKERS!!
T-Rex: I PREFER TO BE SAD ALONE SO GET USED TO THAT IF WE'RE GONNA BE FRIENDS, SUCKERS!!