My background is from the stock market, where I use fundamental analysis. This means I look at the company's ability to generate cashflows according to their strategic position in the market and market conditions, among other things. If I should compare crypto to this then they would probably be more of a growth stock. However, there are no cashflows, and all profits come from appraisal in the sales value of the currency. This makes me think it's all a bubble that will burst sooner or later, and that I better get out before that.