Digital Cash
Joe Thomas
jthomas at access.digex.net
Tue May 3 05:42:04 PDT 1994
On Tue, 3 May 1994, Black Unicorn wrote:
> So has anyone tried to solve the problem of double spending and
> the online requirement of digital cash?
Sure. Stay jacked-in full time.
Seriously, communications costs are dropping so fast, I'm not sure why
you'd put much effort into designing a bulletproof offline system. Even
with today's technology, a shopkeeper could just have a $17.50/mo. Netcom
account and run his Magic Money client whenever someone wanted to pay
with bits. Certainly no more expensive than a credit card Verifone.
But this question comes up often enough that I'm afraid I'm missing
something. Why would offline systems be more useful?
Joe
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