This is just an example of what a person has accomplished in a limited amount of time by himself. Noting stops you from pushing your hamster wheel at a FAANG or thinking about FIRE. You can even do this and a small app at the same time because it doesn't need a huge amount of time.
You don't even have to do a small app. You can do the next Uber or Airbnb. Or you can do something that yields the same monthly amount you get from your FAANG but have the advantages of having no boss and working for yourself. And if you decide you want to do something else, you can sell it for a nice amount, while quitting your job doesn't yield you any money.
You don't even have to do a small app. You can do the next Uber or Airbnb. Or you can do something that yields the same monthly amount you get from your FAANG but have the advantages of having no boss and working for yourself. And if you decide you want to do something else, you can sell it for a nice amount, while quitting your job doesn't yield you any money.