Love it or hate it, but you cannot ignore cryptocurrencies. Monetary historians point out that even Nobel laureate economist Milton Friedman had foreseen the emergence of cryptocurrencies when, in 1999, he said, “The one thing that is missing but will soon be developed is a reliable e-cash, a method whereby on the internet you can transfer funds from A to B without them knowing each other.” Not that he was talking Bitcoin, but many see it as the first mention of a digital currency by an economist of his repute and someone who spoke positively about it.