YOUR cellphone can track who your closest friends are – perhaps even better than you can.
of the Santa Fe Institute in New Mexico and his colleagues handed out phones to 94 volunteers at the Massachusetts Institute of Technology. The phones had logging software installed to track the volunteers’ calls, and their capability detected when they were in close proximity to one another.
By looking for patterns in the call logs and times when phones were close together, Eagle and his colleagues found they could predict who the volunteers identified as their friends with an…
