Man, we reached $100,000,000 (one hundred million) market capitalization many, many years ago by now. Where have you been? Asleep at the wheel? Under a rock? lol now we're talking in the multi-billions... BTC market cap will always be above $100 million... but I think you were referring to 100 biillion ($100,000,000,000), in which case i think we will reach that market cap before reaching 18 million coins.