You never know the real reasons behind a success but you can always tell what caused a failure. Much safer to get advise and learnings from failed startups. 

"In the early days of Google/Facebook/Coinbase we did it like this", means very little. I'm 99% sure many others did exactly the same thing and failed miserably.

Dad, geek, conversation liquidity provider. vrypan.net (home), /weatherxm (work), @l--o--l (fun). Also https://paragraph.xyz/@purplesubmarine

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