That's pretty close to the point I was making. They call it the top 5% because 5% of people pass their interview. The company doesn't have any idea whether th

That's pretty close to the point I was making. They call it the top 5% because 5% of people pass their interview. The company doesn't have any idea whether those people (out of the entire pool) are the best candidates to do the job they were hired to do, because the company probably doesn't measure that. And, they sure don't know that their "top 5%" is representative of the top 5% of all engineers. For starters, how do you measure that?