The dilemma The longer a female spends making a decision about which male she should select, and the more choices she considers, should in theory lead her to a better decision.
Managers at Lower Austria's Stein prison say that due to the animosity towards him, Fritzl is normally watched by four guards.
Typically males seek out females who are physically attractive.
However for females, the principal function of mate choice is to obtain the best genes they can from a male partner.
In this talk, he shares nine projects — from maps of the country built using information taken from millions of dating profiles to a gun that fires a blank every time a shooting is reported in New Orleans.
His point: the way we use technology reflects on us and our culture, and we reduce others to data points at our own peril.