This is my personal thoughts.
So crypto or bitcoin or so is based on the block chain technology. A well coded technology which is based on mathematical logic getting solved. As time passes the logic becomes tougher and more combinations are needed to solve them. With time, energy consumption goes up. Basically blockchain was developed to solve such mathematical logic and make passwords stronger.
Crypto makes use of this complex logic and that is what is mining. Crypto has no base and no physical value. Its all just digital and the initiators have the most of it as they hold this without any investment. Like we mine gold and natural resources, crypto mines digital coins.
Crypo is based on digital natural resources which are mined digitally. It has no real value and neither will any of the countries consider this as a value. So, as an investment, imagine when there is recession and a dooms day and people have no real money, people wont bother for unreal money as they wouldn't have real money to buy unreal money.
Crypto has managed to create hype and get more traders. I call it a global gambling den where buy and sell is by luck which depends globally. From 8k to 16k and vice-versa in a flash just gives the amount of trading opportunity where values tick every second and 24*7.
I would say, crytpo is a good gambling den but not an investment idea.