Colloquially it means to understand deeply. To do a darn good job of it.
17 posted on 03/06/2012 2:04:11 PM PST by HiTech RedNeck
(Sometimes progressives find their scripture in the penumbra of sacred bathroom stall writings (Tzar))
Yes, Grok is a Heinlein term. Darned good one, too. From “Stranger In a Strange Land,” if memory serves.
69 posted on 03/06/2012 5:32:11 PM PST by Museum Twenty
(To see myself as others see me? Sounds like a terrible fate! I take great comfort in self-delusion.)