This book is absolutely fascinating! It's incredible to see that while the world was working on and "perfecting" the automobile, there were also inventors working on designs for these "exotic" and potentially more efficient transportation systems as well. It's like there've been "two worlds" all along and somehow the public got stuck in the wrong one. I think increased public acknowledgement of these technological accomplishments will hopefully steer us back to the right path, and increased distribution of this book is an Excellent first step!