Thanks, love the post. I agree with everything you said. Recently, I was in an interview for a company and they gave me three requirements for a versioning tool I should design conceptually. I started with the data models and then the backend / frontend communication. I wasn't told who this versioning tool should be for, how many people would use it and other important domain related things, so I said I'll concept a simple solution that would work fine for a group of people but would have to be refactored if we'd want to scale up and support thousands or more connections simultaneously, I was told "sure, go for it".. Once I finished I said that I was confident that a versioning tool has way more complexity and requirements than described initially within those three sentences and that 60 minutes to design such system in a stable way is optimistic.

A week after the interview I was told that they don't want to continue with me because I didn't ask enough questions and that my solution wouldn't work if millions of people would use the system at the same time. I think I avoided a bullet