Not sure why I was downvoted, this was a genuine question. I understand the idea of having decentralised currency to specifically avoid being "controlled" by c

Not sure why I was downvoted, this was a genuine question. I understand the idea of having decentralised currency to specifically avoid being "controlled" by central banks but the example of BitCoin has not worked and I wonder if this is purely a technical issue specifically with Bitcoin (slow ledger, associated with crime, instability) or whether it is even possible to get the stability and value from any system that is not anchored to anything tangible. Is the jury still out or do we know it can work?