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Yes, many have enjoyed the current status of fiat by cashing out from crypto. But the future is not in paper money, it's in unique digital identifiers that cannot be replicated unless there is an agreeing consensus in the blockchain used.
Also don't forget in a future world with 5G connectivity, blockchain technology is very much needed for 5G to work as intended.
Don't get desperate, just let time decide if cryptocurrencies and blockchain will have a future.
We can do small things to help the progress or the "hype" / trend. We are the time
I guess you do not believe that all the cryptocurrencies have equal chances in the future.
Will you bet for or against some cryptocurrencies ?