How two Irish brothers started a £70bn company you've probably never heard of

The huge value in spotting a gap in the market. After receiving a valuation of $95bn by investors, Stripe has become a big name overnight. But who are the brains behind the online payment processing business? John Naughton examines John and Patrick Collison's meteoric rise, two brilliant brothers from a small town in Ireland, who fixed a major problem of the online world and are now reaping the benefits.