[oosh9Shi]

That's quite a personal experience, I think.

For me, the books which had the most impact on my life were those which were exploring systematically something I had a confuse idea of and seemed rather unorthodox. When you get that feeling that "oh great, if I'm insane, I'm not alone", it immediately organizes your thought process and allows you to go further.

Of course, there is always the risk of an "echo chamber" effect, but on the other hand, there are some ideas that you can't get if you're not in a given predisposition, so better maximize the usefulness of your reading time (and explore introduction to alien ideas through lighter sources, like small articles).