A bunch of shit showed up in the same place.
Shit can not occupy the same place.
Shit started moving to take, and make, room.
Shit got complicated.
Shit divided up into groups, keeping other shit from occupying claimed territory.
Shit got real complicated and matter(s) heated up, so shit made a bunch more room, really fast.
That’s when shit realized what it was doing and called the effect “time is passing”.
Even more complicated shit uses shit to send shit to each other, and, it all doesn’t mean shit.