> he couldn't remember some useless piece of easily-googleable (ha) CS trivia on the spot.

Or that's what he claimed.

> Even though they all run it internally.

That's what he claimed as well. But never heard of Homebrew while I was at Google, though I had a Macbook for 5+ years. (Well I can't definitely say my Macbook never ran Homebrew - after all, when you are in Google, all such things are handled by dedicated teams. But I can definitely tell that this "scandal" was the first time I heard about Homebrew.)

Not trying to take him down - I'm now in a different company and use Homebrew quite happily, but it's simply not true that it was widely used inside Google.