I missed a week last week. Sorry.
It's because I was busy. Mostly deep in PowerPoint. A correspondent suggested that I should have said keynotin' not powerpointin' but no, I was in a corporate environment where using Keynote would be like using an alien form of electricity. I know they're supposed to be swappable between but they're just not.
And, you know what, I've been using PowerPoint on an almost daily basis since about 1992 and I just know it. It versus Keynote is like a crunchy old Akai sampler versus something sleek and modern, or a pair of 1200s versus Ableton Live. It might not be as good, but there's something about using a tool you really know.