Click here to read a short article by Matthew Yglesias, which recommends that the US Treasury should issue perpetual bonds. In other words, governments simply pay an annual coupon but never have to redeem the bond i.e., pay back the principal. This is not a new idea. Britain, from the 18th century onward, issued Consols, which were perpetual bonds paying a low coupon rate.
According to Robert Shiller , speaking at Davos, Bitcoin is a perfect example of a bubble - story here . Shiller sees Bitcoin as a backwards step in the evolution of money. George Selgin , a free banker, takes an opposing view - click here . Although he doesn't believe that Bitcoin is money, he sees its development as a fascinating turn in the evolution of money. In particular, he lauds the fact that Bitcoin production is constrained and cannot be infinite. There is a short video below where Bitcoin explain how it works.