(1) For xAI's Grok chatbot, see
xAI.
(2) For the encyclopedia, see
Grokipedia.
(3) For the GroQ AI company, see
Groq.
(4) To thoroughly understand a subject. The word grok comes from Robert Heinlein's 1961 science fiction novel "Stranger in a Strange Land." In Martian, grok means "to drink in thoroughly," but more specifically, it means to take something in so thoroughly that it becomes part of you.
Really Learning GIMP
GIMP is a sophisticated paint and image editing program, and this book teaches people how to use it.