bitcoins is of the most active crypto currency of the world and it will remain for ever.
It is absolutely true, but did not close the possibility that bitcoin is going to have a very dangerous rival for growth or defense bitcoin in the future. Because technology will surely developed and every technological development there must be some things far better and far more modern
Monero? It is more untraceable than Bitcoins. But as long as Bitcoin remain as the base currency for exchange, it will hold up fine.