The leadership of the current crypto currency, such as bitcoin, is determined by some advantages. The primacy on such fertile soil gave birth to its seeds. This tree is the first to be above the others and takes more attention, like the trees of the sun's rays. As a result, these advantages allow bitcoin not only to be heard, but also to maintain its authority. But this is so long as some major forces do not want to pour considerable resources into another crypto currency to promote its growth and popularity. A completely different question is whether it is necessary for anyone.
It is possible how to bypass bitcoin by its height, and to knock it down so that it can grow a new one on this one. That's only the problem of the second option is that at the moment, bitcoin is associated directly with the crypto currency and any manipulations will directly affect all crypto-currencies. If it is possible to unfasten these two concepts from each other, bitcoin can quickly give up its positions.