What Are Blockchains Useful For? - Balaji Srinivasan + Àlex Rodríguez Bacardit

2 Mar 2018 · 23 min
22:51

This is an interview (March 2, 2018) with Balaji Srinivasan about Earn.com (previously 21.co), a service that monetizes email and small tasks via blockchain-enabled micropayments. Balaji explains the company origin, why crypto makes low-friction payouts feasible (instant, receive-only addresses), and concrete use cases: paid replies, paid surveys, pay-to-install, targeted sales outreach and token airdrops. He describes a personal paywall/"bounce" that charges outsiders only upon reply, explains how sender deposits raise the cost of mass spam (example: $50,000 deposit to limit abusive campaigns), and shows how pay-for-action can outperform pay-for-attention. Key lessons: consider labor vs. capital (whether to build or invest), avoid stacking many bleeding-edge platforms to reduce platform risk, and keep technical risk scoped.

Questions this video answers

March 2, 2018

About $120,000 per year

About $1.2 million per year

A ~ $50,000 Bitcoin or Ethereum deposit (example)

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