> "The ability to scale with success is important, but designing products for high scalability from Day 1 is usually a mistake." In my opinion, and having help

> "The ability to scale with success is important, but designing products for high scalability from Day 1 is usually a mistake." In my opinion, and having helped dozens of startups (friends or work), this is the biggest mistake I've seen. Engineers love to make things that scale, while business logic imply to leave it for when it is actually needed. I'd say it's #1 waste of time in a startup (in Spain). Also, when doing so mostly it's done without measuring anything, just doing it "for the sake of it".