[sfn42]

I had no idea. A kilometers long wire sounded completely infeasible to me, though clearly I underestimated the fiber optics.

I would have thought kilometers of wire would be too heavy to keep on a spool on the drone itself, and without the spool on the drone you probably can't have fly by wire. That's why I was dismissive, it sounded to me like a completely infeasible idea.

[myfonj]

Fair enough, I remember being sceptical myself when I first read about that. Well, learnt something new today, at least. (In that WP article I see that wire-guided war devices are much older invention than I thought.)

[lucianbr]

Maybe apply something similar to the Chesterton Fence principle: don't be dismissive of an idea unless you really understand the ins and outs of it.