A really interesting write up and I have followed him on Twitter.

But after a little research, I've discovered that I don't think his company is open to investing at the moment:

Disclosure: Social Capital is a technology holding company that only makes proprietary
investments from our own balance sheet of permanent capital. We are not open to new investors and no longer raise funds or otherwise provide investment advice to others. This letter must be read together with the supplement disclosures attached to it which are integral to the information contained in this letter.

This is from his open letter he put up on Twitter. The letter is an interesting read though covering all sorts subjects. Also, I think that despite that disclaimer, guys like that are allways willing to invest if the right project pitch comes along 😉