I had previously doubted that Bitcoin would be replaced by another currency. But my mind has changed. Because I see there are many other cryptocurrencies that the developers are trying hard to solve the problems in cryptocurrencies. What about bitcoin? We don't know who are the developers and no effort is being made to develop it.
If you don't try hard, your rivals will win. Bitcoin's rivals will win too.
Maybe they will but that will be in the future because in this time bitcoins is still the number one for most of the people. They are on top and still on top through the years because the people is already put their trust on bitcoins no matter what happen they will aleays believe that bitcoin can surpass it. But nothing last forever so I'm pretty sure that in the future if there are some new technology them bitcoins will be replace if they will not be updated