On May 5th, Hashtag Capital Partner Spencer Yang sent a text to speculate on 10 blockchain applications that Facebook may bring to global citizens: 1. P2P payments; 2. P2P authentication; 3. Voting and authorization; 4. Goods and services Invoices and payments; 5. Loan and credit cooperation; 6. Investment securities; 7. Access to any electronic services, games, applications; 8. Share and retrieve data with third-party electronic services, games, applications; 9. Visitors and immigrants Its global identity; 10. Asset and information inheritance.