Clever Doorbell Hack for Deterring Unwelcome Solicitors

blog.modernmechanix.com

3 pointstechnoguyrob2 comments

We could make spam uneconomic with a similar implementation.

Indeed, but we need the right kind of microcurrency.

I thought this would happen some time ago when there were rumors that the us postal service would start offering email services. They would be an obvious candidate to offer something along the lines of djb's Internet Mail 2000 http://cr.yp.to/im2000.html

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