[_delirium]

Become a blogger? ;-) Of course, it's only a "job" if you become a pretty high-profile blogger.

The "doesn't tie me to a computer" part leaves me unclear whether you want a job that's still thinking about computers but just isn't actually on them all the time, or whether you want a change of careers to a thinking-centric occupation that may not involve computers at all.

If the latter, there's all the traditional areas like philosophy, but they tend to be hard to find jobs in. Law has thinking-centric jobs, especially if you're a researcher for a larger firm that has someone else doing the in-courtroom advocacy, or a clerk for a judge, or a judge yourself, or a legal analyst at a think-tank or in academia. But you'd need to get a JD.

Long-form analytical journalism is also thinking-centric, but it's hard to make a living at (there are a handful of coveted jobs doing it full-time, and then a larger number of freelancers writing such pieces and trying to shop them around).