> sub part of the network may be quite safe

true, seems like the more something in finance resembles a utility (like a pure conduit or short term store of cash / tokens) the safer it seems to be. altho i guess even those types of agents can get infected if enuf shennanigans are going on around them (e.g. money market's breaking the buck in 2008-2009)

> BTC wallet users to pay on Stripe merchants with one hop through gdax or any other exchange

thats pretty cool. so thats how stripe's btc processing works? dump the btc for usd (for example) at market via some exchange routing algo? then forward the fiat so the merch never has to handle any cryptocurrency?