I agree with Mike Barr. I think there is a specific reason for using blackboards in math talks: Where most disciplines use graphics and texts to present data and conclusions, mathematicians often write to convey a line of reasoning as it develops. When I talk about math I often put formulas or diagrams on the board, and change them as I go. Slides and powerpoint can handle those changes in various ways, but none are as flexible or as graceful as writing on a board. Colin At 02:02 PM 7/26/00 -0400, Micheal Barr wrote:

I think we should continue to protest the lack of blackboards. I have used transparencies and I have even used tex to prepare them. But I don't like it and I don't think it makes good talks and I don't see why we should acquiesce.

Michael