Had a few of these turn up.....

Timothy Leary, Tom Paine and the bloke who made Lucy the chatbot.

also been looking up the badder- meinhof lot for character studies,.....
looky here..

Baader-Meinhof Phenomenon
The Baader-Meinhof phenomenon occurs when a person, after having learned some (usually obscure) fact, word, phrase, or other item for the first time, encounters that item again, perhaps several times, shortly after having learned it.