Years is incomparable to decades. In crypto, tokens are your own and you can have governance power through DAOs. With Robinhood, you are just buying some promise from the company that you ‘have’ those shares. Whereas you legally may not have them. Leave aside the power to vote.

Crypto takes the role of banks in respect to finance. It does not need to offer products for that. It is the product. However crypto does offer actual products and services that work through smart contracts. That is something that traditional finance doesnt do.

You seem to have misunderstood crypto — regardless of the computing power you have, you can’t generate more tokens than mathematically possible.