I am convinced that many have become emotionally defending bitcoin as if it is closer to a religious sect than a digital currency that has advantages and disadvantages and may die in the future, but it is now the best that centralized technology can offer and may have a very high value in the coming years.
It is natural to protect what we love and Bitcoinists just protect what they love and believe in that is Bitcoin.
If Nokia, yahoo can collapse, Bitcoin can collapse too. But before anything that is too big occurs, Bitcoin is strong. The magic power of Bitcoin is its decentralization which can not be found in other cryptocurrencies.
Because we have yet had other decentralized cryptocurrencies like Bitcoin, Bitcoin is still a strongest and most attractive cryptocurrency. In future, I don't see how the world can have another decentralized crypto like Bitcoin.
In general, regardless of personal opinions, what happens in the coming years is what will determine the future of this currency, and the statements of individuals differ accordingly.
I beg to differ that Bitcoin won't be beaten by other cryptocurrencies. Like Gold that is not a most precious metal on Earth but it is a most favorite one. Diamond can not compare to gold in popularity.