I'm not sure why. If you don't raise the question immediately, other viewers might be misled by the flawed presentation. Once you stand in front of your colleag

I'm not sure why. If you don't raise the question immediately, other viewers might be misled by the flawed presentation. Once you stand in front of your colleagues and present something, you should be really sure you are right. Look, I've attempted to publish things that were wrong. I fully understand the negative emotions associated with having your work evaporate in front of your eyes. But it's a necessary part of the search for truth.