It's not as applicable to startups as you would think. The real calculation startups are making all of the time that this book doesn't mention is "is it worth making this particular piece scale/secure/robust before we run out of money?"
While it's technically true that the advice would apply to startups in the sense that it would improve their reliability, the elephant in the room is that it doesn't matter. The engineering skill at a startup is understanding what's actually critical, and this book doesn't speak to that.
While it's technically true that the advice would apply to startups in the sense that it would improve their reliability, the elephant in the room is that it doesn't matter. The engineering skill at a startup is understanding what's actually critical, and this book doesn't speak to that.