Prescient writing or unheeded warnings?

Many times sci-fi writers get it right. Arthur C. Clarke’s comsats are now ubiquitous, Theodore Sturgeon’s spread-spectrum communications is tech in hand every time you pick up your cellphone, and Isaac Asimov’s robots have morphed into assembly-line miracles and precision surgical tools.

Bioengineering is the name of the game in the 21st century. Cloning and specially designed plants and animals generate lots of debate, but they will occur, for better or worse. In my “Clones and Mutants...