The future of crypto currencies is unknown,
It was, now rather it is accepted that it is something for the future that is developing and has gained mainstream acceptance.
but it is a new generation of Money which is already replacing the paper currency,
It cannot replace any currency. Going by that logic a future altcoin should also replace bitcoin. But that is not the case and hoping for one is also futile. It rather complements fiat currency.
especially Bitcoin been the most popular and successful among other crypto currencies so far, bitcoiners need to know that currently Bitcoin is trading low from its all time high, Bitcoin should not be viewed as a short term Investment, but should be seeing as a long term life changing investment due to its liquidity and high returns when trading high.
Not everyone will see that long term goal, some are here for the short time. But to each their own, bitcoin can thus be both.
Bitcoin is a digital currency that has come to stay, as long as the internet stays , most persons that didn't believe in Bitcoin 10years ago regretted it, that will be also be the case for people who don't be in it now come 2034.so think positively take the risk and Investment in Bitcoin today.
I am sure we will hear the same thing 10years from now so anytime to invest is now and missing opportunities should be a lesson to correct them in future dips.