There is a fine book that I am recommending.  In the late 1960s, I discovered Kenneth Boulding.  Around 2005, I bought Our Final Hour by Martin Rees.  I am reading it again now.

 

Our Final Hour: A Scientist’s Warning 

by Martin Rees 

https://www.amazon.com/Our-Final-Hour-Scientists-Warning/dp/0465068634/ref=sr_1_6?s=books&ie=UTF8&qid=1543626205&sr=1-6&keywords=martin+rees

You will find much that you will find nowhere else.  He says that in six billion years that humans will be as different from us as we are from bacteria now.  See this quotes and others below.

“I’d like to widen people’s awareness of the tremendous timespan lying ahead–for our planet, and for life itself. Most educated people are aware that we’re the outcome of nearly 4bn years of Darwinian selection, but many tend to think that humans are somehow the culmination. Our sun, however, is less than halfway through its lifespan. It will not be humans who watch the sun’s demise, 6bn years from now. Any creatures that then exist will be as different from us as we are from bacteria or amoebae.” 
― Martin Rees

“We, and the visible universe around us, may exist only because of a difference in the ninth decimal place between the numbers of quarks and of antiquarks.” 
― Martin Rees

“We, and the visible universe around us, may exist only because of a difference in the ninth decimal place between the numbers of quarks and of antiquarks.” 

― Martin Rees
 
 
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