In your dreams only. Good luck finding any serious (aka "smart") money willing to take your valuation seriously. With such due diligence you're likely to be the only one hodling $FOO ;)
Thats exactly why market cap is a bad metric - it does not encode market depth (how much you can actually sell before the price moves) or velocity (how many units are changing hands in the wild in a given period).
Worst of all, currencies do not have market caps - equities do. Market caps are measured in currencies.
Worst of all, currencies do not have market caps - equities do. Market caps are measured in currencies.