There is no risk of fracturing. I'm not suggesting changing the protocol, or UI of the existing clients. You may use your client to send/receive money, no probl

There is no risk of fracturing. I'm not suggesting changing the protocol, or UI of the existing clients. You may use your client to send/receive money, no problem. I may build another client which will allow you to do manipulations with transactions without affecting anyone at all. E.g. timestamping is just a funny way to create an address and send back-and-forth the money. No one else needs to be concerned about it except for the people who wish to verify existence of a document. Money was not destroyed and it did not change its shape. This is not fragmentation, it is "building on top of" in a very compatible manner.