INTP - "Architect". Greatest precision in thought and language. Can readily discern contradictions and inconsistencies. The world exists primarily to be understood. 3.3% of total population.
Not that I give much credence to personality tests (is that INTP thing to say?), but here's the Jung Type as derived by a test I took (see link above.)
loner, more interested in intellectual pursuits than relationships or family, wrestles with the meaninglessness of existence, likes esoteric things, disorganized, messy, likes science fiction, can be lonely, observer, private, can't describe feelings easily, detached, likes solitude, not revealing, unemotional, rule breaker, avoidant, familiar with the darkside, skeptical, acts without consulting others, does not think they are weird but others do, socially uncomfortable, abrupt, fantasy prone, does not like happy people, appreciates strangeness, frequently loses things, acts without planning, guarded, not punctual, more likely to support marijuana legalization, not prone to compromise, hard to persuade, relies on mind more than on others, calm
And from Wikipedia:
INTP types are quiet, thoughtful, analytical individuals who don't mind spending long periods of time on their own, working through problems and forming solutions. They are very curious about systems and how things work, and are frequently found in careers such as science, architecture and law. INTPs tend to be less at ease in social situations and the caring professions, although they enjoy the company of those who share their interests. They also tend to be impatient with the bureaucracy, rigid hierarchies, and politics prevalent in many professions, preferring to work informally with others as equals.
Sounds about right, though.