"Gourville's research suggests that the average person will underweight the prospective benefits of a replacement technology for it [E-Mail] by about a factor o

"Gourville's research suggests that the average person will underweight the prospective benefits of a replacement technology for it [E-Mail] by about a factor of three, and overweight by the same factor everything they're being asked to give up by not using email. This is the 9X problem developers of new collaboration technologies will have to overcome."