Ok all, we're going to settle this once and for all. I'll work with my prof (behavioral economics) tomorrow to set up a risk profile questionnaire (like an advanced Ask HN) and we'll know by Tuesday how well this claim holds up, empirically. (edit: unless we're comfortable making claims about risk preference WITHOUT data...)
edit 2: these are specialized, refined tests that construct risk preference from a number of decisions from hypothetical situations. Assessing risk preference is not a simple manner of direct question (ex: "Hi, are you risk tolerant or risk averse?") or introspection.
I have constructed preference profiles with conjoint and other "complicated" methods many times for big companies and believe me: they only scratch the surface of human behavior, most of it is not valid.
Everybody may have his/her own reason for being an entrepreneur. I see this discussion and Arrington's article as well (besides maybe preparing the ground to quit:) more as an emotional discourse to justify why we do what we do. I have these discussions with my friend and bus. partner all the time and I really enjoy feeling superior to employees, but I know in the back of my brain that it's somewhat unfair.
Anyhow, as for myself, I love to do it because of the lifestyle, because I love to create something, because I can wake up late and work during the night, because I am in control of my professional life and decisions and perhaps most importantly because I hate to know what's gonna happen the next day, next month which is inevitable with a normal job.
My life is over as soon as I am locked in a job + family + everyday routines + stop being curious and open. I would die. I would know how it is going to end, just wouldn't know when.
Just to avoid the latter and achieve the former I am risking right now nearly everything stable I have had in life (friends, family, nice job ($1M in 5-6 years), house, perspective of a relaxed long life)
(don't misunderstand the family part, i believe that is the most important element of a happy life, but it decreases your "degrees of freedom", if you see what i mean)
Ah, that was the word I was looking for, freedom :)
edit 2: these are specialized, refined tests that construct risk preference from a number of decisions from hypothetical situations. Assessing risk preference is not a simple manner of direct question (ex: "Hi, are you risk tolerant or risk averse?") or introspection.