I'm Down to Learn About Cryptocurrency

"I really understood the nature of if you could write if then statements into like a financial contract, or even money it," he says. "It took me time to wrap my head around what immutable and permissionless meant that that was actually a thing that you could just have a contract running." He's now working on an app called Foursquare which will let users pay for things with their credit cards by sending text messages instead of cash.