If an asset increases its price tenfold in less than 1 year, investors likely think that it will be a bubble since the faster its price increases, the faster that it will soon pop in the market. Also, big financial/investing companies tend to give their opinions on bitcoin stating that it might crash soon. Well, they might be saying the truth but i am clinging on the fact that they are creating news that degrade bitcoin so investors will pull their investment off, resulting to a decrease on its price. But who really knows? Maybe they are definitely right or wrong, but you can never go wrong into investing today in bitcoin as it continues to rise on the market.