A return—and a book nearly abandoned
Kingsley returns after ten years and explains why The Threshold almost remained unpublished.
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Kingsley returns after ten years and explains why The Threshold almost remained unpublished.
A threshold is not only technological; it is a point of choice about what kind of human future we will accept.
The promise of extending or uploading life raises a deeper question: what exactly is being preserved?

Dr. Clifford A. Pickover is a researcher, scientist and author. He received his Ph.D from Yale University’s Department of Molecular Biophysics and Biochemistry. He has authored more than 50 books. He has also been granted more than 600 U.S patents.