Rationality Attractors in Personspace

These two questions seem to be somewhat interesting, especially for those interested in rationality outreach.

What makes someone more likely to study rationality?

More likely to become a higher level rationalist?

A few thoughts:

Empirically, rationalists seem to be more into technical fields than average, and more interested in an explicit understanding of social things than most technical people.

People who can more clearly see deficiencies in themselves, and who try to solve problems seem more likely to become rationalists, when exposed to rationality.

People who are motivated to pursue rationality for instrumental goals, rather than for funsies, seem to become better rationalists.