In this New World, the entire pool of theory on interest rates is trashed immediately. Actually if we think about it, when the concept of interest rate was conceived, it was in lieu of a surplus generated by labour of a person, immediate consumption of which was postponed. Owing to self-consumption, the surplus generated by any individual was limited. This level of surplus of various individuals set the interest rate. However today, thanks to central banks and fiat money (and Gold Standard also long gone), the supply of money is unlimited, and with all the financiers, anybody who is not in the NINJA (No Income, No Job/Asset) category can have access to credit and consume immediately. So intuitively, with unlimited supply of money, the cost of money should be zero in the current age.