Ask HN: Resources on Blockchain, Smart contracts and Oracle networks

After listening to one of Lex Friedman’s latest podcast episode (Sergey Nazarov: Chainlink, Smart Contracts, and Oracle Networks) I’m thinking on learning more about #blockchain,#smartContracts and #OracleNetworks

Any recommendation for someone who start from scratch?

https://t.co/1HyTpcoom4

I already have in mind reading their white paper, but maybe it’s more useful to start from the basis.