Multicoin's Tushar Jain on why moving payments on-chain could destroy financial privacy instead of protecting it: "You're right that privacy has been decreasing as people move from cash to electronic payments. But blockchains have the potential to make that a lot worse. Right now, if all your payments are electronic, Visa can see them, every bank can see them, but those are still trusted institutions." "We know that all of these payment companies want to move on-chain. The Visas of the world,…