The Arrow of Time feat. Sean Carroll

Why is the past different from the future? Caltech physicist Sean Carroll explains how the arrow of time is not an intrinsic property of physics, but rather an emergent feature. Trying out a new feature: English Transcript! Let me know how it works Tweet it - http://bit.ly/vJRWOo Facebook it - http://on.fb.me/tHwjDU minutephysics is now on Google+ - http://bit.ly/qzEwc6 And facebook - http://facebook.com/minutephysics And twitter - @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute! Music by Nathaniel Schroeder youtube: http://bit.ly/pakJLE myspace: http://mysp.ac/qtmZQj Created by Henry Reich