No CBDC development in the last four years? What are you basing that claim on?
Project Cedar. The commercial band CBDC project, was still undergoing activity as of this 2023 press release.
I haven't checked in on project Hamilton lately, the retail CBDC, but my understanding is that development is basically complete, and it's ready to be unleashed during the next crisis. Be that organic or engineered.
Also nobody except Aaron Day is talking about the regulated liability network, the tokenized global asset "CBDC"
https://www.newyorkfed.org/newsevents/news/financial-services-and-infrastructure/2023/20230518