I will just speak to bitcoin. Miners seem heavily concentrated, so not as decentralized in reality versus design. Also, I feel that crypto was created as a replacement to Swiss bank accounts that are nolonger anonymous, so rich want an extra-national currency to prevent nation state meddling in the affairs of the oligarchy. Additionally, wallet addresses seem to an immense concentration of Bitcoin in a relatively few wallets. This concentration means pump and dump real easy. I saw BTC jump when Cypriot bank crisis hit and I thought to myself if I buy a little I can piggy back alittle on such crisis, but I am not wealthy enough to really invest big money, so I am just a small fish. No different than Wall Street really

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