And what are you doing, but vigorous handwaving about how it is actually possible? Make a working version of it, or point to someone making it work. So far it i

And what are you doing, but vigorous handwaving about how it is actually possible? Make a working version of it, or point to someone making it work. So far it is nothing but a paper concept. Again, no one is saying it is impossible. It is merely incredibly implausible and won't happen. You can pretty much pick an arbitrary timeframe on this. If you want 30 years, I'll give 30 years. It won't happen in that timeframe.