The BTC has great potential, it has grown tremendously and achieved tremendous achievements, what it has achieved no other currency can repeat. It is the pioneer and the leader of all. No matter what happens, it will never collapse. Perhaps it is experiencing problems, but I believe we can solve it, an experienced king like bitcoin always knows how to overcome difficulties. Other currencies can grow and grow, because its technology is superior, but it can not replace bitcoin. I'm sure about that.
Yes, no one can take the place of the BTC in virtual currency, which I agree, but other currencies than the BTC can do better, this is the development trend of the whole block chain
Many governments and bank sector are showing a lot of interest towards blockchain technology. Bitcoin is only digital currency leading all the other currencies. Of course, many people are kept predicting bitcoin growth is over, we don't know what is going to happen to us. We have to move according to market that's all.