Asimov describes himself as a conservative, but the 50 years since he wrote this book go to prove that relativity isn't confined to the Einsteinian physics he touches on in the early chapters of this book. The final section turns to society, the environment and the problems of finite resources, overpopulation and pollution. Now he'd be seen as far left-wing in his views, as exemplified by Trump's empty seat at today's G7 climate session. 👇🏼