Say if someone copied your codebase tomorrow, and rebranded it as a competing solution and started advertising on same places as you are, what do you do?

I'd handle it the same any other business would who had their intellectual property infringed upon.

How would you know?

How would I know if somebody forked and rebranded Keygen's API to compete with me? I feel like it'd be pretty obvious unless they redesigned the entire API schema, endpoints, etc.

Not really something I'm worried about.

If this happens in a market far away that the original product would have a hard time reaching, it does not really matter.

But if the original product grows enough to be able to reach far away markets, then it's lawyer and discovery money would grow too.

I applaud Keygen API approach, though I really hope we find a formula that makes free software become pervasive while providing financial stability to authors and maintainers.

If you don't know, then it probably doesn't affect you.

> Day-to-day self asessment of cognitive performance is probably the best proxy.

How do you do that?

Measure it using a series of cognitive performance tests. You could even just grade your own experience day to day - assuming you feel everything is a little worse when you sleep poorly (a sensible assumption), you will probably get representative data.

> As an entrepreneur I don't strive to "make money", I strive to learn, adapt, and survive. Money and success depends solely on how well I can iterate those three things.

Beautifully said!