Thousands of cryptocurrencies existing despite seeming the same is one of the first things that baffles new users  –  surely if Bitcoin works, why does anyone need another one? The answer is that they’re not all the same, even if they superficially look similar. Different blockchains serve genuinely different purposes, while a large fraction of the thousands in existence are speculative, failed, or fraudulent projects. This article explains what real differentiation exists, why anyone can create a new coin, how to separate signal from noise, and what Indian users should know.