I bought a car on a 20k loan, with 2013 money. Now in 2014 it takes a 40k loan to buy that same car. Sucks to be that guy buying the car at 40k, I only have to gather up half as much money to meet my loan demands, but that money is easier to come by.
What car doubled in price in just a year?
He's making the assumption the dollar might lose half its value in a year.