"I could have restricted myself in this book to only the most sober physical calculations. But in order to create the necessary respect for my idea (otherwise a realization of this idea is unthinkable), I felt impelled to draw a few pictures of the future... and I have set up some fantastic claims. Naturally, here also, I have said nothing that might not be possible by present scientific standards, and I will now show that I am also on completely scientific ground with this idea of a reflector."