Because people who love to think rarely interact with others who love to think, many thinkers fail to cultivate their social-thinking graces. If the thinker is authentic, he behaves inconsiderately. If the thinker actively attempts considerateness he easily falls into thought-obstructing social conventions such as meeting etiquette, or  jokey banter, or polite pleasantries.

Because of this, thinkers often continue to think in isolation, even if they know other thinkers.