I am not familiar with this book, I am super curious about some oddities. So, for example, in the 1950s, there were all kinds of articles in Popular Mechanics alone that discussed antigravity. And then there was a day when ZERO happened. Not dwindled. Not continuing to publish, just one day they quit.

That seems signficant somehow. And when you add to that the Navy patented antigravity tech, well... I can certainly spin a conspiracy theory here.