Why can't we go back to the days of modems. It seems to be the only potentially accessible set of wires that any company can hook into without permission, regul

Why can't we go back to the days of modems. It seems to be the only potentially accessible set of wires that any company can hook into without permission, regulation, permits, etc. Most homes have at least 2 pair wiring, most modern homes have 4 pair. So minimum is 4 wires and maximum is 8. Even on a 2 wire half duplex Ethernet connection you should get pretty good speeds compared to DSL and especially 56k. Yes, lots of collisions but hopefully most opt for the 4 wire 2 pair connection. Instead of a 56k modem we would have to create an Ethernet modem. What is the technical limitation that prevents this from happening? Being able to have "Ethernet Dialup" so to speak? If I have 4 pairs on one end I should be able to connect up to some telco and get access. In thinking about this, that does mean the cost of having 4 data lines turned on. But I had a data line dropped into a colocation cabinet for 9.99 a month. For around 40.00 a month maximum a home should be able to be lit up. At just the prices Amazon advertises for S3 storage and that's transit and storage add another 10.00 a month and I have plenty of bandwidth. Though I would hope to actually pay wholesale pricing getting costs down even lower. It should be possible to profit 20.00 or so off each user. Throw in a one time fee for the Ethernet router and you should be making money. With potential for gigabit speeds. The only thing I can think is how do you deal with the line length limitations of Ethernet runs inherent to that technology itself. I'm hoping there's something out there. They have been slowly pushing DSL to faster speeds, or is DSL++ or DSL2 or whatever it's called essentially what I'm talking about? Maybe this all comes down to the 100 meter limit for Ethernet runs and how impossible it would be to put repeaters or hubs every 100 meters. It just seems that the wire is there, why not use it? In 5 years when no one has a landline are we really going to have millions of telephone poles scattered around with wire on them that does nothing? Grated we use the poles for other things like power but it just seems strange that there will be all this copper just sitting around. I guess then it's time for the mass copper recycling project to get underway.