Here is 1 example of a coin and how it works. I personally have not invested in siacoins but like what they are about. In the other forum community im in a lot of them invested in sia 2 months ago and are seeing some huge profit. We have 14-18 year olds investing 5000$ who have 50,000-60,000$ protfolios after 2 months. It's all research and understanding what the coins are about to make the correct investments. All coins have different functions.
http://sia.tech/