"Grok" is not seen very much on the Internet outside of hacker/sci-fi fan circles. And it feels like using it in SF circles is very much marking you as An Old -

"Grok" is not seen very much on the Internet outside of hacker/sci-fi fan circles. And it feels like using it in SF circles is very much marking you as An Old - it comes from Heinlein's "Stranger In A Strange Land", which is not a book that has aged well.