This is complete nonsense.
Yeah that's right. Investing in crypto currency is a great idea...than wasting your money in other cheap investments. This investments is one of the fastest way to earn more.
Don't' expect fast returns in Crypto because sometimes there are huge dumps happening, so it is always good to hold as long possible until the price of coin increases in the market. Cryptos will give you good income but for that, we need to have a lot of patience.
although todays crypto is slow moving and sometimes there are huge dump , but still crypto investment is good as long as you can wait and you see that your investment will run for a couple of months or year , and also you can do holding if you are afraid to loose in investing your coin is at your wallet go with the flow of the price .