Yes. Multiple times. I always found it pretty funny as I'd known they were devel...

Yes. Multiple times. I always found it pretty funny as I'd known they were developing their own right alongside it.

Granted, I think his criticisms are more specific than being about the technology in general.

I think he was more critical of it being penned as some replacement for existing currencies and monetary systems, and the whole use as an investment.

But don't quote me there.