Double the number of poles & towers in the photo, all emitting EMR, & Microwave radiation.
I seriously think the NBN is a GREAT thing!
I saw someone refer to the NBN as redundant technology - that person is a technical retard.
The fibre itself transmits at the speed of light. Once it's laid, It doesn't need any maintenance, just protection from knob-ends with backhoes & shovels.
- It's impervious to EMF (so will NEVER be affected by electromagnetic radiation/sunspots etc),
- It operates underwater (as long as the ends of the fibre aren't underwater - that's where the electronic equipment is attached. BTW, most of your overseas internet traffic is now via underwater fibres)
- Depending on how the cables are run (buried -v- flown), it's reasonably immune to bushfires
- Does not suffer from crosstalk - copper cables actually start picking up the signals from cables running parallel to them, that's called crosstalk
- is very hard to tap without very specialized equipment
and so on....
The speed of the NBN will always depend on the speed of the switches either end of the fibres. so a 100Mb switch will only give you that speed on each fibre port. Want more speed? easy - Change the switches to Gigabit switches.
You'll never need to change the fibre itself (unless there's some weird hi-tech circumstance that I can't even imagine right now)
Once optical switching/computing is developed, switching speeds, and hence, network speeds will increase dramatically - the fibres between the switches will not need to be changed.
I know this because I look after a pretty large & complex fibre network, and have been doing for over 10 years. most of the transmitter/receivers we have are over 10 years old & still performing brilliantly - I think I've had maybe 6 repaired in that time (of 300ish - I'd have to go count)
so I say BRING ON THE NBN!