^Possible answer to "What are we?":
A LOT of energy was started at the Big Bang. Inflation REALLY got things exploding (the 'Bang" of the "Big Bang" happened a few seconds after the start of Everything.
That energy is still in motion. Some of it cooled down into Matter, which is why you and me are here.
The big bang never stopped moving. Everything is moving… everything travels through times arrow forward because we are LEFTOVER EXPLOSION.
Perhaps, one day, everything will stop moving. Photons will stop photoning, electrons will stop electroning. Everything will stop moving. And Time will End, because nothing further happens to distinguish one moment from the next.
But we will keep moving for billions of years to come.
What do you think?'^