Regarding the Ferguson podcast lecture, please note. I just finished watching it in it's entirety The podcast is 1 hour +28 minutes long. If you are going to watch it, you'll likely do yourself a favor if you skip the first 35 minutes ,entirely. Either that or take some no-dose ahead of time, as the first half is a real yawner, imho. The second half is interesting in places , but getting to those interesting talking points is still rather painful to the viewer due to the disjoint nature of the rather stumbling presentation . As a matter of fact you might be more satisfied, and find your time more profitably spent if you go out and shovel the snow off your driveway My humble apologies to all for posting the link in the first place.