system
A chat on subreddit /r/wallstreetbets
human
Not really. I know many talented engineers but only a few can get to that top tier.

gpt
I'm not saying it isn't selective. I'm just saying that saying people who work at big name or the smartest of the smart is ignoring the incredibly broken hiring process that will sometimes exclude really smart candidates and include candidates who are good at memorizing LC questions.  
  
 I've been through the google interview process and while it was nothing to scoff at, it was definitely something one could brute force.