ABSTRACT
This chapter addresses the problem of meaning, otherwise known as the problem of "intentionality" or "aboutness". Scientists often use the term "information", rather than "meaning" or "representation", when they describe the aboutness of brain activity. Brain activity, like thoughts and words, has aboutness. Even organisms like plants or worms have cells that convey information to one another. Worms have light-sensitive cells that inform their brains about the presence of light. The idea that one thing is "supposed to be correlated with" another can be defined in terms of biological function. The key insight of "teleosemantics", a school of thought that says aboutness is just a kind of biological function. The philosophical naturalism, which attempts to solve ancient puzzles of the mind by turning to biology and the other natural sciences. Many scientists throughout the twentieth century have dimly glimpsed some special connection between natural selection and teleology.
