There’s been a surge in the buy now, pay later space, which is exactly what it sounds like: Get something you maybe can’t quite afford and pay it off in installments. You might not even need to have your credit checked. By some counts, more than half of Americans have used it. There are concerns that this new method of payment could be confusing us about what we want versus what we need. And now Affirm, a leader in this space, is partnering with Amazon. Marketplace’s Jed Kim speaks with Max Levchin, CEO of Affirm. Levchin believes the new model of buying is necessary.