If Libra succeeds as a payments network and platform, then it’s possible that the only fee will be from fluctuations in exchange rates; this is in effect a zero

If Libra succeeds as a payments network and platform, then it’s possible that the only fee will be from fluctuations in exchange rates; this is in effect a zero remittance fee. Libra itself can still make money by investing the float (money that doesn’t leave the system).