[cap-talk] Scope/span of capability systems (esp. as data), network reach

[Dave Chizmadia - Gmail]

> We have developed a protocol for a cell phone payment system 
> that does the job by turning the problem around.  You send me 
> a capability to withdraw 1 EUR from your account.  I deposit 
> the money in my account by giving that capability to my bank. 
>  My bank does whatever it does today for international 
> currency transfers and deposits the proceeds minus any fees 
> into my account.  We have designed the protocol to have 
> minimal impact on the back-end processing.

    It is worth noting that the real-world banking community
has used this protocol for several centuries...

        They call it "cheques" (or "checks" using American 
spelling).

-DMC