Discovery and Invention
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
Discovery finds something that already existed; invention combines existing things into something new. Both drive change from inside a culture.
Show
Penicillin was discovered — the mold already existed; the printing press was invented — screw press, ink, and movable type combined into something new.
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Both are social events — what a society does with the new thing is the change.