Considering Gold's market cap is over $8,000,000,000,000 and Bitcoin's is just $75,000,000,000 it is quite safe to say that this is untrue.
However, it is certainly possible that when the other 99% of people learn about Bitcoin and begin investing in it that we will see a number close to this and eventually surpass it.
After all, $1,000,000 per Bitcoin means the market cap would be $21,000,000,000,000 minus lost coins, which still would be well above Gold.
I think your numbers are simply too high, for many people in the forum bitcoin is performing the same function as gold, they are using bitcoin as a store of value so we do not need numbers that high if some of the people holding gold decide to hold bitcoin instead.