There are a few reasons I can think of that might help bitcoin on another moonshot.
1. Supply will half in next couple of months
2. Investors from falling stock markets looking for new investments.
3. Negative interest rates and capital controls imposed by banks on the fiat system.
4. Some kind of debt default or bankruptcy causing another global crisis
+1
People who fail to understand these points are pretty short-sighted. But most people are, and some even call normality a virtue, although it is actually a sign of mental degeneration.
Some poster attempted to say something as laughable as
halving - it applies only to the coins not yet mined. There are actually enough coins already in circulation to keep the price surpressed arbitrary long. Halving will fuel some growth, but it shouldn't bring us beyond $500-600.
Couldn't be more wrong, did you even read the topic?
USB-S posted a link to answer this one:
3 Signs the Demand for Bitcoins is GrowingWhen you consider that 3600 new bitcoins are created daily (with that number dropping to 1800 by mid-2016) then Bitcoin’s price just holding steady means that buyers are absorbing thousands of coins daily at or near the market price. In fact, Bitcoin’s market cap, a measure of price multiplied by existent coins, is steadily rising even during spells when price remains as idle as a painted quote upon a painted ticker.
edit:
for illustration, here's the chart of bitcoin's market cap, as you can see, it is steadily rising even though the price is the same. now add halving to the equation and you will get a big phat rally
edit2:
also this:
of 2014-2015 
