Tokenadult has a regular post that has grown to the size of a small essay which basically says the only way to tell if someone can do the job is to give them the job to do.

How long does it take to become obvious someone is not a good fit? A couple of hours? No, if humans could not fake it for a couple of hours no one would ever go on a date again.

A couple of days - maybe. My own pet theory is when I hit a new contract is to commit a bug fix by the end of the day and push to production by the end of the week.

But no one sane is willing to give a week to an interview, and few a whole day.

I think in the end we judge people by their public output - in other words GitHub reall is going to be our CV