Seems to me Ripple's greatest weakness is it can be so easily forked.
They do have a hefty head start and other advantages. And they rely on a simple fact that once the system is working well, it's much better to join and reap the benefits, rather than compete.
They count on several bunches of non-colluding validators to cooperate to process the transactions, in the real world things never work that way...
What about SWIFT? Several bunches of non-colluding banks in different countries cooperate to process transactions
