Got to do it in stages so it doesn't look too premeditated.

Start a online auction site where people can sell their stuff and you get a small cut of the profit.

Then to help people on board start a payment processor company to ensure that the sellers ship their goods and that buyers pay.

Once that has established, go public with it so that your stock sales can support the existence of your current portfolio while you dabble in other things that you know are very profitable.

Once you have that going, which will take a few years. You can take a victory lap or two and maybe pay some PR firms to make you look like the cool rich kid on the internet that everyone wants to hang out with.

Then you can do stuff like starting a spaceship company and helping to bring about the end of the internal combustion engine by starting an electric car company and doing some solar panel stuff.

Eventually you'll be the richest person on the planet and then you can get to doing the really fun stuff assuming you don't like tank all of your personal reputation by blowing 20% of your net worth on a microblogging website or something while disavowing your trans daughter.

I mean, if you're smart enough to do all the other things surely you wouldn't blow it at the five yard line like that.