Instead, for Thiel, the bubble that has taken the place of housing is the higher education bubble. “A true bubble is when something is overvalued and intensely believed,” he says. “Education may be the only thing people still believe in in the United States. To question education is really dangerous. It is the absolute taboo. It’s like telling the world there’s no Santa Claus.”

Internet sellers who don't report their sales will no longer be under the radar. Starting next year, any bank or other payment settlement company that processes credit cards, debit cards, and electronic payments such as PayPal will have to issue information returns telling the IRS what merchants receive. The new returns are Form 1099-K, Merchant Card and Third-Party Payments.