At the moment Bitcoin is the gold , people how invest in it , for a longer period , you can become a millionaire , and i think is the simplest way to make money like you have to watch the market.
Well I will say that Bitcoin is far more worthy than gold in present age. And it will keep on increasing its worth far faster than gold or anything else. The way Bitcoin has made into market is outstanding. It made people and is making them rich with each passing day.