Citation for the capacity problem? I'm skeptical because this sounds a lot like the speculation around DSL when it rolled out in my city back in 1997 (IIRC), a

Citation for the capacity problem? I'm skeptical because this sounds a lot like the speculation around DSL when it rolled out in my city back in 1997 (IIRC), and the "crosstalk killing throughput of the entire cable bundle" issues never seemed to come about. The real killer to the telco behind DSL seemed to be that they would never deploy DSLAMs in remote terminal boxes, because they didn't want CLECs to come in with their own DSLAMs to serve the rural areas, so if you weren't a couple miles from the fairly rare Central Offices, you were limited to 128Kbps IDSL (ISDN data-only) service. Then the just sat on their copper infrastructure while the world moved on past them with terrestrial wireless and cable modems. Their last gasp was a million dollars spent on advertising to oppose the municipal fiber network, along with the cable company, but the city is installing those lines as we speak, and it's glorious!