I know Adam, we're just comparing bad with bad.
It's a pity that Walker Wind Sails went belly up; that's the sort of thinking we could do with now.
Was Walker the fella who had a wind turbine powering a conventional shaft and screw type propeller by direct drive? Definitely a pity if that idea is toast, the models I saw were absolute genius and, as proof of concept, incontrovertible. Still reliant on the wind it's true, but it was good enough for Columbus.