In the pre-PowerPoint era of the 1980s, armed with a carousel filled with 35mm slides, I traveled the country giving an introductory presentation on ploidy and cell cycle analysis. We now lightheartedly refer to this period as my “What’s a pixel? talk” years. To create the slides, I sketched out the layout for each on a sheet of copy paper, and then faxed them to Houston where a delightful gentleman named Jim would magically create the Kodachromes. This usually involved a phone call or two to talk about colors and fonts, following which Jim would mail the slides to me a week or two later.