Semi-related: I remember needing to send a fax to some institution. I had a multi-function device that's a printer, scanner, copier and fax in one on my WiFi ne

Semi-related: I remember needing to send a fax to some institution. I had a multi-function device that's a printer, scanner, copier and fax in one on my WiFi network, and I didn't want to waste paper so I'd just use Windows' Print to Fax feature to send the fax. I remember contemplating how many encapsulations the document went through: it's supposedly a paper document, but it's all just digital, it went over WiFi to the device, the device dialed the number, and since I was using a cable modem, it did Fax over IP, and at the receiving end it probably never got printed on paper either, being received by a machine that converted it to a JPG/PDF...