I regularly trade Bitcoin options on LedgerX and the other day I needed some USD to close out some of my short calls. This being the first time I had to actually transfer USD into LedgerX, so I thought how hard could it be? Well, they only allow wires. But even if they used Plaid (which is probably on the horizon), I realized that wouldn't work for me because my credit union is not supported (I know that from dealing with BlockFi).
I really didn't want to bother with a wire and then it dawned on me that I could just transfer bitcoin over and sell it. So I fired up Coinbase, bought bitcoin, sent it to my LedgerX wallet, sold it and had cash in hand to close my positions. All within 5 minutes. If that's not revolutionary, I don't know what is.