Perhaps Robin Hanson might act as coxswain for this.
My hesitation for focusing too much on birthing order is that there are far more psychological underpinnings for the developing and mental/emotional direction of a person than his or her sibling positioning.
As a transhumanist, I am a first born every day of my life.
Natasha Vita-More: http://www.natasha.cc Transhumanist Art Centre - Home of Extropic Art: http://www.extropic-art.com **NEW** Transhuman Culture InfoMark: http://www.transhuman.org PRESS RELEASE: "We are transhumans ..." Meme Orbits Saturn in 2004!
"The best defense is an aesthetic offense."