I've never seen these people before

I went to a biology seminar last week. The room was packed. The room was packed with people I had never laid eyes on before. Well, I recognized one faculty who is retired and maybe some faces that I had seen on the web.But otherwise, they were complete strangers. Just in case I needed any reminder that graduate students and faculty (at least in Biology) aren't coming to the library building any longer.... Interesting, they do use library resources. The speaker cited lots of articles and books in his presentation. At some point, they came from a library subscription.