This is an excellent application of Tesla coils. That we can induce the self assembly of carbon nanotubes happens to also be important as this leads directly to cable making which can only become better as the art improves. This is a step along the road to potentially producing a space elevator.
That may never be built but large span bridges will be.
Our pillar and stay system is naturally expandable depending on cable strength and these cables go well beyond present expectations. All good.