The problem with these stories is that they come from finance-oriented sites that think because bitcoin is described as an asset and a currency all the typical knowledge they have about assets and currencies applies to bitcoin.
These are websites that get excited about a few hundred basis points (few percent) move in the price of gold so when bitcoin doubles its value in a short time its an amazing feat.
Thats not to say that doubling value isn't a significant change, but it just doesn't mean the same thing as say, gold, doubling its value.
Bitcoin price is tied to its adoption
If there were only ten people in the world interested in gold and trading it between themselves would they trade it at $1300/oz? What about if those ten people suddenly had another 100 interested? would they trade it at the same price?
Bitcoin's price and its adoption are closely linked because adoption of this particular technology is close to being the same thing as demand for it as an asset.
bitcoin is a technology with an adoption curve
The chart above is the bitcoin price in USD from day one until today. The reason it looks like a straight line though is that the scale is logarithmic, not linear. Here's the USD bitcoin price charts with their different scales:
Interesting, but so what if bitcoin is following an exponential curve in its price, maybe its just a fluke or a massive bubble?
technology adoption curves are not linear
Here's a chart of Facebook's users:
Bitcoin is following a similar adoption curve, the only difference is that the price is also affected by other factors like greed, fear, news, and the economy. This adds volatility to the curve and even creates bubbles within the curve but the overall trend stays the same - an exponential curve (with bumps) that will at some point level off.
The levelling off will occur when bitcoin nears saturation, not just from individual user adoption (people that know about it and maybe own a few) but adoption for any and all purposes that it is useful for (store of value, remittances, merchant transactions...).
The bitcoin price isn't going on some huge inexplicable upwards streak, its following a standard adoption curve.