The point is that they didn't know it's impossible. They had good reasons for believing otherwise (see my other comment in this thread) and it's the nature of t

The point is that they didn't know it's impossible. They had good reasons for believing otherwise (see my other comment in this thread) and it's the nature of technological progress that sometimes even experts have to take a chance on being wrong. Lessons learned. We can move on without having to slag others for trying.