Most likely, the former president of the Central Bank of China referred to problems that modern cryptocurrencies have with the scaling that includes fees, network congestion and the speed of transactions.
The former President of china's central bank, sounds much more credible than Jamie Dimon. Have to give him that.
But isn't it interesting how his words return us to the big block debate? One might wonder if origins of the big block movement had connections to china. I think so far china is the only central bank to echo big block demographic ideology. Nigeria, venezuela and other nations have publicized other reasons for opposition to cryptocurrency adoption. There could be an interesting thread of deduction determining affiliation present.
The timeline for CBDCs could also be an interesting point of deduction. Many might agree central banks appear to be waiting for something, before unveiling and rolling out CBDC. It appears they could have a blueprint or roadmap in place.