What is thinking, and why does people "think" ? How can it be that humans once started "thinking" ? What can "thinking" be used for ? How is thinking performed ? What can be thought of ? Is there different ways to perform "thinking" ? Is there any difference in quality in what way thinking is performed ? Is there any quality differences between "high quality thinking" and "bad level or bad quality thinking" ? Does thinking has some bad effects so that there might be reasons to avoid thinking ? If thinking should have some negative effecs or negative side effects, what could then be the suitable methods to avoid thinking ?