That's right, the "crazy-spacey-mad scientist" stereotype is older than Jerry Lewis !.
You can get the idea from this old caricature of a 17th century alchemist lab. The alchemist and his assistant are so deeply devoted to getting a precious chunk of the philosophal stone (to turn any metal into precious gold !) that they have no eyes for the world outside their crucible.
This twisted perception of exclusive dedication to the pursuit of knowledge still lurks in our collective idea of what a typical scientist is.
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