cbelt3 wrote:
Color me confused. Bandwidth IS a consumable resource. It's not infinite.
It's pretty close to infinite once you go fiber.
First off, there's still a huge surplus of
unused fiber in this country.
And the reason for that is that there's been a constant improvement in the amount of data that can be sent over fiber. Once it's in place, you just have to upgrade a few parts at the endpoints -- often just a matter of reflashing a few chips -- and you've got better bandwidth. They were doing 3Tbps per strand for trans-atlantic cables as far back as the turn of the century and those strands come in huge bundles.
So, they don't use what they've got anywhere near to capacity and at the rate that the tech is improving there's no end in sight.
It might as well be infinite.
You might argue that not everyone gets fiber to their home and the copper cables that go to most people's homes can't push data so efficiently, but a similar improvement in speed occurs with copper cabling. We could easily do 10Gbps to homes across 90% of the population with minimal investment. The biggest expense would be replacing people's cable/DSL modems, but that gets reimbursed over time because most people's "rental" fees for such devices cover their costs within a 18 months.
They've been able to do 10Gbps over Ethernet since 2002 and it's been available to consumers since around 2009-2010. If they were interested in doing any improvements at all, it would be pretty cheap and wouldn't take much investment to go with fiber to the end of the block, 10GbE to the switch and true Gbps at your wall. Most local cable monopolies could do it inside of a year if they wanted to.