The Beginning of Infinity: Explanations That Transform the World

David Deutsch is a physicist by training. In The Beginning of Infinity, he weaves in physics with the theory of science, philosophy and the future. He has an optimistic view of society. He gives little credit to stories that "the world is doomed." While in school, a professor told everyone that global cooling would lead to an imminent food shortage. That didn't happen. Today we are concerned with global warming. Sometimes people are obsessively concerned with whether the warming is caused by humans or naturally occurring. However, if there are negative consequences to warming, the cause is irrelevant. The scientific method can be used to help find solutions. Political "fixes" will often set things back, in part by forcing effort in the wrong area.

He also gives the example of somebody who thought color televisions were a needless luxury. There was little that color TVs could do that could not be done with black and white screens. Color TVs also depended on rare elements of limited supply, thus would only be available to a limited set of wealthy people. Today, color screens are everywhere. The dependency on rare elements, however, is gone, with CRTs pretty much nonexistent these days. New technology made the previous problems irrelevant. The new technology was built upon the previous technology.

The enlightenment enabled humankind to master the world. The problems we solve today were likely not thought of previously. Scientific explanations can be used to explain everything. They are constantly subject to re-evaluation. He feels that science should seek to explain things based on observations and theories that can be disproved. Supernatural or religious explanations cannot be easily disproved and are not "scientific". (It could be argued that that science and religion live on different planes. They are trying to do very different things. There is little need for them to try to compete with each other.)

The book goes into long discussions about Infinity and the "Infinity Hotel". Greek Philosophers also get significant coverage. Quantum theory, the theory of relativity and Newtonian physics are all covered with their inherent conflicts. There are many different theories of the universe today. Static societies think they have all they need today. These societies eventually die when faced with an external shock they cannot deal with. The Enlightenment helped enable dynamic societies. They use the existing knowledge. However, they also seek to gain new knowledge, possibly throwing out beloved theories in the process. There is no single source of authority other than the truth. (The author has some negative things to say about "post-modernism" which seems to say everything is relative, but only is acceptable if approved by certain "authority figures") 

America's cultures seems at odds with the "enlightenment views" advocated. The left tends to favor "science", but also is subject to adopting certain "beloved beliefs" regardless of new knowledge. The right tends to be more conservatively static, however, it also encourages more freedom of action. A good future for science needs a bit of both.