Bitcoin cannot crash nor go down against the dollar. You can print as much US dollars or fiat currency as you want. BUT YOU CANT CREATE MORE THAN 21 MILLION BITCOINS. If everyone just realize that fact, it would never stop going up. It seems like the idiot stupid fools that are selling since December don't know that. It is just as simple as that.
That's why the tulip bubble argument against bitcoin is flawed at the beginning. They keep on comparing bitcoin to tulip bubble were there is unlimited supply while bitcoin can't go beyond 21M coins in circulation.
And it really boils down to the basic economic law of Supply and Demand. Only please take note that every 4 years, there is a halving making the supply of bitcoin scarce, and the price could increase overtime until a final quantity of 21M bitcoin have been mined.
Tulip bulbs are the most STUPID and IDIOTIC argument ever against BTC. How in the world you could compare them?. Its like saying BTC is currently in a bubble. How th FK you can be in a 200 billion bubble with a adoption below 10%?..............NOO WAYY