Remembering a time when connections were down to 40 bits per second, and the resulting algorithms still in use today! Dr Richard G Clegg of Queen Mary University London has the details. Paper mentioned by Richard: https://bit.ly/C_CongestionCollapse V. Jacobson. Congestion avoidance and control. SIGCOMM Comput. Commun. Rev. 18, 4 (August 1988), 314–329. https://www.facebook.com/computerphile https://twitter.com/computer_phile This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: https://bit.ly/nottscomputer Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com/