When mining of Bitcoin began, it was very easy. All you needed was a cheap dell computer to mine your own bitcoins, and you could make a lot of money in a very short period of time. But, because of the way that Bitcoin is setup, the mathematical equations that bitcoin miners solve get more and more difficult over time. While in the old days you could mine bitcoin with just your PC and make money, it’s not that easy nowadays. The major downfall is that the money you earn is limited to how much “power” you purchase to mine the bitcoin.