[codingmyway]

Bubbles have their uses. An enormous amount of money and effort is thrown at a new technology in the hope of getting the bit that sticks.

Most will lose and go broke but a lot of infrastructure gets left behind that later, more considered, businesses build on.

True of the railways, the automobile, telecoms and the internet.

Most crypto currencies will be worthless but systems be created to allow me to buy shares from you with no broker or stock exchange, to track the ownership of patents and property publicly, to enforce government spending to prevent cronyism and uses that nobody has yet thought of.

Best investment is to learn the skills.