So, reductio ad absurdum, we shouldn't have bothered with Ruby when we already had Python. Or Linux since we had Unix. Or React since we had Angular. I agree t

So, reductio ad absurdum, we shouldn't have bothered with Ruby when we already had Python. Or Linux since we had Unix. Or React since we had Angular. I agree that launching similar products has its own downsides, but the upside is that competition acts like evolution - it strengthens the best products, and destroys the weak ones.