What the Facebook Crypto team could build

Facebook can go real big here. The have ridiculous distribution (2B+ monthly users). If they roll out a crypto payment or stored value system to their users, the network effects / lock in will be insane. Only Google could really compete (Amazon doesn't have the same international presence as Facebook or Google; Microsoft doesn't have enough mobile presence; Apple only has rich users).

The question is will Facebook take this seriously and invest over the long term to win. Historically, they've had a terrible history of investing and committing to new efforts that don't pay out immediately (killing Parse, sunsetting big parts of their platform, shutting down their Creative Labs, etc.)