Interest rates are super low. The Fed's printing money like there's no tomorrow.

It makes a lot of sense that investors would want to put their cash in the market and/or take advantage of low interest rates to lever up.

If you're willing to bet the dollar's going to crash in the next few years due to Fed policy, it makes sense to write dollar-valued IOU's today and use them to buy stocks and gold, knowing you'll be able to pay them back with cheaper-valued future dollars.