Robot sailboat

It isn’t a dumb idea, exactly, since most sailboats are balanced such that they will turn into the wind when their tiller is left unattended. But that wouldn’t get you anywhere, so it’s hard to imagine how this would work without human intervention. Yet that’s what some people are setting out to do: create a 4 meter sailboat that can sail itself across the Atlantic. A large model, in other words. The Aussies have already completed and sailed a mini version of the larger trek.