What I especially like about this reply is how it clearly shows how easily he can answer the questions and objections raised. It acknowledges they are reasonabl

What I especially like about this reply is how it clearly shows how easily he can answer the questions and objections raised. It acknowledges they are reasonable questions and as such they have already been considered. There is a current answer, that may change if new ideas/evidence come to light. Readers of this kind of news often seem to underestimate the kind of thought that went into an idea/invention/prototype. They go "well, that won't work, because ..." and they come up with some reason that may sound reasonable (or simply is reasonable), but just isn't important enough. I think it would be good if more scientists replied in this kind of matter to comments to news of their ideas/inventions. It would, I hope, increase the respect people have for the work of scientists.