On Mon, Jul 19, 2010 at 09:34, Mike Stay <metaweta@gmail.com> wrote:
On Sat, Jul 17, 2010 at 11:26 AM, Henry Baker <hbaker1@pipeline.com> wrote:
[...]Verlinde's (~1 hour) audio & PDF slides from a lecture that he gave. In the audio file, there are questions from the audience that are interesting. I've listened to it once & will listen to it several more times.
I'd appreciate a link--I haven't been able to find the video you're referring to.
The link seems to be http://pirsa.org/10050022/ For me the video has no sound, but the MP3 works and I could play both simultaneously using two different programs. Or just listen to the MP3 and try to follow along with the PDF slides. Based on the slides, it seems this lecture at least partly covers the outline of the paper at http://arxiv.org/abs/1001.0785 (I also found a 2005 string theory lecture at http://www.fields.utoronto.ca/audio/05-06/strings/verlinde/ for the really curious) [...] In this case, the inner box has only one particle inside, so there are
10 choose 1 = 10 ways to choose a labeling of the inner box; the outer box has two particles inside, so there are 20 choose 2 = 380 ways. Thus there are 3800 ways to label the system in all.
I thought "20 choose 2" was 20*19/2 = 190. Likewise, 10 choose 2 would be 45. So, a ratio of 4.5, not a ratio of 9. What did I miss? -- Robert Munafo -- mrob.com