Twangy
Exotic. For some definitions of it, at least.
More than two strings, I am certain.
And an edit:
A report and editorial in this week's New Scientist describe recent advances in automated driving systems:
In 2005, a fluttering butterfly could confuse a robot car and bring it to a standstill, but those days are gone. The Urban Challenge entrants dealt with stop signs, roundabouts and poorly marked dirt roads. They navigated around broken-down cars, and dealt with erratic drivers and parallel parking with aplomb.
Before the race, one team leader said his robot was a better driver than he was. One wondered if he was just blowing smoke, but when his robot won the race without a single safety violation, his comment raised the question of what is standing in the way of a world where cars drive themselves?
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My underlines.
The articles are subscriber-only, but the event was the DARPA Urban Challenge.