I was looking for something else, then started wondering what the origin of the phrase “acid test” was…
- The phrase “acid test” is connected indirectly to fool’s gold. The term was born in the gold rush years of the mid-1800s. Since gold reacts differently to acid than do other metals, an acid test was done to determine whether the metal a miner found was in fact gold. Now the term refers to any test that produces undeniable results.
That’s interesting in its own right, although I’d gotten a crazy notion that maybe it was related to LSD. Apparently not. I was theorizing along the lines that it had something to do with how they say the CIA was experimenting with LSD as a truth serum, back in the day.
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