Curious what Max Levchin's been up to ever since he left Google in 2011? Well, wonder no more. Today, PayPal's co-founder revealed his return to the payment world with a new company called Affirm. Like many startups, Affirm is looking to make online payments quicker and easier, but the real question is whether you'll be willing to come along for the ride. AllThingsD managed to catch Levchin for an interview, in which he revealed that Affirm will issue credit to consumers and guarantee payment to merchants for all online transactions.