Sean Carroll, 47.
M, five-eleven, green/blonde.
Blogging since: 1999.
Residence: Austin, TX, USA.
Former residences: San Francisco/Oakland; Boston; Chester County, PA.
Travels: Nevada/Utah, Alaska, western Canada, Thailand, Nepal.
Religious affiliation: Quaker.
Siblings: four (all older).
Married: 1989-1992.
Occupation: Writer/editor, publications/website designer, documentation specialist.
Pigeonholes: Gemini, Year of the Rat.
Necessities of life: bicycle; iMac/iBook; Pilot Precise V-5s and thin-lined tablets; takeout Vietnamese; free wifi; 25-meter lap lanes; independent bookstores with comfortable chairs; punishment-absorbing hiking boots; the road, an iPod jack, and a sunroof.