It's not just that startups are identifying cool new technologies like cybercurrencies, and it's not just that they're using new models to offer loans faster. Startups have started to take on markets which banks pretty clearly knew about, but refused to touch - you can refinance a federal student loan with SoFi or commonbond now, which was unheard of five years ago.

The problem is that the little guys' competitive advantage seems to lie only in their willingness to enter the space. Once the market is proven, Wells Fargo and JP Morgan won't really have a difficult time stepping in with boringly normal technology and using their giant pile of money to dominate the market.

What can finance startups do to avoid being squeezed out by the older, established banks?