The purpose of most of these currencies is to offer small modifications from Bitcoin proper, including faster confirmation times, attempts at socially useful mining algorithms and different monetary policies such as fast exponential decay, quadratic decay and even infinitely linearly growing supply, and investors and users of the coins believe that these additional features and modifications will make the currencies either overtake Bitcoin or at least survive in some niche. Detractors, on the other hand, argue that Bitcoin’s network effect is too large, and altcoins do not provide nearly sufficient value over Bitcoin to ever