As currencies are fixed against one another, investors could potentially borrow bitcoin in the UK and then shift it to another higher-yielding country, therefore exploiting the price difference between the two. Given its inflexibility, a monetary system based on bitcoin is unlikely to be a desirable one. One of the U. Although investment fads like bitcoin might appear tempting, especially given previous impressive returns, remember that past performance should never be considered a guide to future performance. Cold feet Companies that handle cryptocurrency have a tough time getting banking partners, with almost all big-name banks eschewing that business. There are plenty of risks from treating bitcoin as a mainstream asset, and, in our view, these far outweigh its potential benefits.