5-1b1a1b1 Babbage’s discovery of the universality of computation was innovation via discovery of knowledge (he himself couldn’t build universal computer)

5-1b1a1b1a However, Babbage’s idea was represented by pen and paper, themselves technology
5-1b1a1b2 Vitalik Buterin generalized the principle of blockchains to outside cryptocurrency, and built Ethereum

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