Nothing. If you were born in 1AD and earned 1,000,000 every single day without spending a single penny you still would not be a trillionaire today. He will never spend that wealth , he will use that money to get loans that he does not owe taxes on, using that money to acquire even more capital. He has stated his goal is 10 trillion. At no point along the way will he use his wealth or influence to directly improve any common person's life. He is a cancer on our planet, on our economy, and on our civilization.

He is definitely not the first trillionair or the richest man. he is the first publicly recorded trillionair / richest man. Most keep the vast majority they have secret as fuck.

Most of that money is in Tesla stock so not much can be done with it. Maybe take out 10% to 30% of its value as a loan from banks with the stock as collateral then mostly buy some shit that will ideally appreciate in value. It's not liquid wealth so there isn't much you can do with it. $1B liquid would be far more valuable than $1T in stock evaluations.

He's going to spend it paying top esports players to play games pretending to be him.
Elon is finally going to be the champion in all videogames.

He's going to use it for political influence to further his fucked-up Nazi ideals.

And, of course, get more money. It's never enough with these fuckers. They have a version of hoarding disorder. It's always on to the next grift, more money, more money, more money, more money, number must go up!

Until he's the only free person in the world and absolutely everyone else is either dead or a slave owned by him, he's not done.

At least he is saying that he wants humanity to become a two planet civilisation.

At these numbers it becomes meaningless, like infinity+1. All we know is that he can get whatever he wants.

When you reach your peak, it's time to die.