>>20211926The example was a simplified case.
If you imagine entropy getting things to the more complex from the simple you can image it like a triangle, where one edge is the "start" in the flow of time and then it "spreads" as time flows.
So one edge at the bottom is our big bang and then the Universe evolves. But within it you have extropic structures (lifeforms), that cause a local reduction in entropy at the cost of accelerating total entropy. So they are like inverted triangles within the triangle (they move backwards in time).
Example: Take 30 pictures (frames) of an egg smashing, and shuffle them. A person can arrange the pictures appropriately (the egg falling, and then breaking into pieces) because they understand the time arrow as entropy increase.
Now let's say we had 30 pictures of the distribution of iron on Earth over the last 300 years (one every 10 years). Imagine them like x-ray photos. It looks like the iron was removed from all over the place and self-assembled into factories, cars and skyscrapers. So it moved from the complex case to the ordered one, backwards in time. In other words, life on Earth moves backwards from the singularity that happened/will happen in the future all the way to the beginning.
The fact that the Big Bang happened in the first place implies that there was/is a process that is reversing entropy (it is like a living organism). So the observable Universe lives within a larger multiverse ("triangle") that moves in the opposite direction, which in turn lives within a larger one still etc. Like the pic, but inside out (instead of being able to zoom in forever, you can zoom out forever).
Also, if you look at our Universe in reverse, it looks like a living thing that self-assembles, from everything being ripped apart at the end all the way to perfect order at the beginning.
There is no absolute arrow of time, we just find ourselves in this direction right now, surrounded by something going the other one, surrounded by...