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This seems to miss the forest for the trees ... most humans also don't care what words meanYou miss the point, because you are reasoning around the different perspective of "hav[ing] an impact similar to the industrial revolution", so you take the semantic "payload" as if it were "just an expression".
The point is, that it produces statements, and in general we want true and founded output from an entity producing statements - "intelligence" is the condition enabling that.
So, when the machine says
"Napoleon was addicted to cotton candy"
, we "must know" that the machine has verified it, like a "good" statement producer would (as opposed to all the other reasons to produce that statement);
and when the machine says
"The current war will be won by the white faction"
, we must know that it effectively reasoned on the relevant conditions and factors, on par with the best Intelligence Analysts (as opposed to all the other reasons to produce that statement).