I've read Layered Money.
As much as I respect Nik Bhatia, "it's always been done that way" is not a valid reason to continue doing something (layered monetary systems).
The entire first half of Nik's book makes many strong cases *against* attempting to build a layered monetary system.
It's one of the biggest problems that's led to our utterly broken fiat system.
You can't scale technologies in layers. You can only build applications in layers.
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