I was really expecting a solid article there since he claims he tried to solve it. Specifically -- - What exactly are these barriers the industry has set up?

I was really expecting a solid article there since he claims he tried to solve it. Specifically -- - What exactly are these barriers the industry has set up? - What kind of savings be obtained through his solution? - What exactly is this solution without going into the crypto part (which I assume is what he wants to sell)? - Any solution involving crypto means at the least both client and server side changes are needed, which means every merchant needs to upgrade. What is he proposing that has a better value proposition inspite of the costs involved? I am not even questioning his crypto protocol, assuming its good.