Maybe there can be profit to be made from this business too with a bit of _delay_ in between receiving and giving. I'm trying here just to imagine this company. I think it will work because of the scale. I'm thinking: I take dolar bills from one person, I keep them 10 days and then I give them to another one. And I repeat this for 1 trillion dollar value. Even if the profit in 10 days is 0.1% then you will have 1 million dollar remaining to you. What I am trying to say is that it seems to be a value in being so big, because of how big numbers math works but also because people are impressed by it (think going to a bank asking for money)