I think that bitcoin will reach a million dollars in 2030, and the reason is that there are only 21 million bitcoins, and that will mean that with the little bitcoin that there is, it will make bitcoin go up a lot in price in 10 years .
One of the topics that most caught my attention about yobit is its cloud mining that they just added, since they have good profits, and very good profits
I would not recommend that you invest in a single currency since if that currency falls your investment too, it is better to have a diversified portfolio.