-- The inevitable reaching of the limits within which the earth, the air, and the sea can absorb the excreted wastes and
poisons of our technological civilization without producing massive ecological disasters.
Such «bottlenecks» between the origin of life, the evolution of intelligence and the development and
sustainment of a technological civilization could prove problematic not only for the search for E.T. but also for our own future.
On the other hand, if there are 100 billion suitable planets in our galaxy, if the origin of life is highly probable, if there are billions of years of evolution available on each such planet and if even a small fraction of technical civilizations pass safely through the early stages of technological adolescence, the
number of technological civilizations in the galaxy today might be very large.
Colourful and violent — even aggressive, at the start — his work, populated by robots, automata, insects, primitive figures and dreamlike forms, illustrates the hallucinatory dreams and the icy
nightmares of our technological civilization.
But while The War in the Air envisioned a grinding 30 - year war ending in the
destruction of technological civilization, in reality war actually spurred technological development to a pace more fantastic than even Wells» insight and imagination could envisage.