Why do people think that it's impossible for BTC to reach there? Not only limited to such factors as %s of gold, forex, stocks, equities, etc., but we must not forget that whenever the stagnancy of either miners or BTC will take place, some huge longs or shorts will take place for sure...
Even I hate it when someone says it's impossible as I'm too a firm believer that it will reach that for sure... Winklevoss brothers ain't much fools to say that BTC will be $1,00,000 one day...