[jstanley]

Pointless comparison:

Cryptocurrencies aren't very useful if you own the entire supply.

Visa is still useful even if only one person owns all of the shares.

More interesting would be "if you have $X to invest, at what value of X does it become preferable to buy Visa shares instead of cryptocurrency?"

[kgwgk]

I agree, comparing the total quantity of bitcoin or dogecoin or dentacoin in circulation with the market capitalization of a traded stock (or the valuation of a private company, for that matter) is pointless.