Does the overall behavior of the universe change over time? I have a religious answer.
First, we need to brush up on our Isaac Newton, specifically his Second Law — the observation that order decreases over time. You’ve experienced this is you’ve ever tried to un-scramble an egg.
A (sort of) exception to this is life, where a bunch of random atoms get organized into a body that eats and poops and lies about the books its read. But of course if you look closer, it’s not really an exception. The order of your body exists because you suck order out of your surroundings (If you are an average American, you stay alive by sucking the order out of roughly 90,000 square meters of the planet).
But gradually, disorder gets the upper hand. You get a bad hip, your heart gets tired, you move to Florida and start thinking Wheel of Fortune is awesome. When your pattern breaks down enough, you become compost.
The same is true of the universe as a whole. It was born 13.8 billion years ago, and at some hard-to-pin-down date in the future, it will die.
I say “maybe” because it’s true only IF the universe continues to behave the way it is currently behaving. It’s true if the Order-Becomes-Disorder pattern continues indefinitely, something we have no way of knowing. What if the overall behavior of the universe were to change in the future? (If you can’t fathom such a thing, look at the phase transition that occurred at the end of the universe’s “Inflationary Epoch”).
I come from a community of people who claim to have observed evidence that this pattern is changing. We have observed phenomena in which disorder has given way to order in ways we cannot explain with the usual “sucking-order-out-of-your-environment” explanation.
These phenomena usually get called “miracles” — events where order increases without a corresponding “order suckage” from its surroundings. (Where the order/energy might come from is a discussion for another day).
The centerpiece of these miracles is the historical person Jesus of Nazareth, specifically his resurrection from the dead. It is something we’ve observed and, if we’re intellectually honest. we have to find a way to make it fit into our Big Picture of the universe.
Even if that means changing our Big Picture.
That’s exactly what we’ve had to do. Our new Big Picture is one where the universe’s behavior is going through a kind of phase change. The Jesus-event we call “Easter” is indicative of what is happening to the cosmos as a whole.
Our claim is that death has begun to go extinct. Time will tell if we are right about that.