The answer took a long time and it was Isaac Newton's 2nd Law. The longest time is infinity so the answer is beyond knowing because the computation never ends.
Discussion
I've have just watched that video in its entirety. I am not a mathematician or a physicist but I do really enjoy watching stuff like this. It is simply mind blowing to a layman, like I. I was however, a little disappointed when, towards the end, they summed it up, as you say, to be something that is just equal to Newton's 2nd Law, though with a little more nuance. They did however mention another mathematician, Fetmat. He had a famous last theorem. Documentary below:
I'm sure you must have seen it🤔.
If you've not, you really should.
Not really sure where I'm going with all this but you're a fascinating human all the same. You're either Satoshi himself, an Autist, a doctor of Mathematics/Physics/Philosophy or God knows what.
I'll bid you GM and look forward to any reply you may proffer.