Yep. Your path into the company (were you interested in joining it) is: 1) Found your own company to do a specific thing 2) Prove out you can do the thing and

Yep. Your path into the company (were you interested in joining it) is: 1) Found your own company to do a specific thing 2) Prove out you can do the thing and do it well, and furthermore have the thing be valuable enough that it would be worth acquiring but not valuable enough that it can operate as an independent company that covers its own costs 3) Google decides that what you're doing needs to be part of their portfolio and they buy your company and staff.