The fact that 2,000% more people could be using activity feeds and we didn’t even have any idea that it was happening is certainly the greatest purely technical achievement of my career.

Being able to “forget” about some software solution you built up before, because “it just works”, is the result of good architectural and stack-related choices.

I once read something along those same lines, when dealing with personal projects and motivation - not the same thing, but closely related: using a familiar stack will help you keep momentum and avoid losing interest, while keeping focus on the actual product, because you won’t be trying to learn how to do something every once in a while.