Bitcoin only, not crypto.
Learn why, study #bitcoin
What is Bitcoin? | A Bitcoin for Beginners Guide by Saifedean Ammous
https://m.youtube.com/watch?v=MzUqKbP33iA
What is Money? | Robert Breedlove and Lex Fridman
https://www.youtube.com/watch?v=bjvMt0xaSUQ
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