> the main utility of blockchains is money laundering and speculation Where did you get the data that justifies that assertion? In any case, don't bother with

> the main utility of blockchains is money laundering and speculation Where did you get the data that justifies that assertion? In any case, don't bother with cryptocurrencies. I'd recommend that you keep all your wealth anchored in US Dollars for the next 3-5 years.