You know what, I didn't read the middle comment in this thread closely enough before my first reply. You're right that an Australian circuit doesn't help much, and the voltage on such a circuit is useless.
A UK circuit on the other hand would fix everything. It has the same number of amps (or maybe more), but double the voltage.
The problem isn't purely amps or volts, but in general home circuits tend to have a similar number of amps, and higher power usually goes hand in hand with higher voltage. That's the sense in which voltage fixes the problem. A US appliance staying well within amp limits has a lot less power than a UK appliance staying well within amp limits.
A UK circuit on the other hand would fix everything. It has the same number of amps (or maybe more), but double the voltage.
The problem isn't purely amps or volts, but in general home circuits tend to have a similar number of amps, and higher power usually goes hand in hand with higher voltage. That's the sense in which voltage fixes the problem. A US appliance staying well within amp limits has a lot less power than a UK appliance staying well within amp limits.