Charlie Munger: Investing in AI [video]
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The line should be "we're so short on the real thing". As quoted, it sounds like he's trying to say we're short of an achievement (e.g. achieving actual general AI).
He does erroneously say what's quoted though, so the title isn't incorrect, but perhaps they should have [sic]ed it; he says "short o' the real thing" but I don't think "o'" has ever been short for "on".
1) Lacking in quantity (e.g. "I'm short of money this month").
2) Not having reached some point on a continuum (e.g. "He stopped short of claiming to be best singer in the world.").
I would say I'm short on money this month.
Etymologically my thinking was that it comes from "to fall short of" - e.g. to be too short to reach a point. Fitting your 2nd definition.
https://www.cnbc.com/video/2016/05/02/munger-gates-on-future...