It is tough but not impossible. Bitcoin will be available till 2023 and it is very much possible for some other crypto currency to take over its place. Even though it will not be very easy, but not impossible also. However, I don't see that happening in 5-6 years. The kind of positivity and public trust is bestowed up on bitcoin, it will remain as the most valuable crypto currency till the time it is available.
Later on, some technically superior crypto currency can certainly get more investments than bitcoin and can replace it from the number one position. Anything can happen in future, that only time will tell.
Later on, some technically superior crypto currency can certainly get more investments than bitcoin and can replace it from the number one position. Anything can happen in future, that only time will tell.
Agree. It is not that difficult for another cryptocurrency to take over Bitcoin's place. However, it may take a couple of years from now for that to become a reality since Bitcoin has an established branding and user acceptance.
If another cryptocurrency comes in with better technology, and with the ability to scale at a fast pace than Bitcoin, then it might probably take its place given that it will gain greater adoption and acceptance among the mainstream world.
But, in the meantime, we could enjoy all the benefits that the pioneer cryptocurrency provides, until the time comes to departure from it. The future brings many exciting things ahead and it will tell whenever Bitcoin will remain within its rightful place on the markets or not. Just my thoughts
). 
