Think Complexity, 2nd Edition

Chapter 11. Evolution

The most important idea in biology, and possibly all of science, is the theory of evolution by natural selection, which claims that new species are created and existing species change due to natural selection. Natural selection is a process in which inherited variations between individuals cause differences in survival and reproduction.

Among people who know something about biology, the theory of evolution is widely regarded as a fact, which is to say that it is consistent with all current observations; it is highly unlikely to be contradicted by future observations; and, if it is revised in the future, the changes will almost certainly leave the central ideas substantially intact.

Nevertheless, many people do not believe in evolution. In a survey run by the Pew Research Center, survey respondents were asked which of the following claims is closer to their view:

1. Humans and other living things have evolved over time.

2. Humans and other living things have existed in their present form since the beginning of time.

About 34% of Americans chose the second (see https://thinkcomplex.com/arda).

Even among the ones who believe that living things have evolved, barely more than half believe that the cause of evolution is natural selection. In other words, only a third of Americans believe that the theory of evolution is true.

How is this possible? In my opinion, contributing factors include:

• Some people think that there is a conflict between evolution and their religious ...