I caught a severe case of the flu this week. It's getting progressively worse and has come near to hospitalizing me. This is the second worst illness I've ever had in my life (the first being botulism, so you might have some idea of what I mean). Unfortunately, as a result, there is no way I can make the Indianapolis event. My speech will be shown there as a video (no, it can't go online, due to issues of copyright law). My voice is recovering, so I'll be narrating.
Since this video-talk will contain material I probably won't speak on anywhere else (nor probably ever write about), fans might not want to miss it, even though I won't be in attendance to take questions or join the panel (or to sign books, though they should still be sold there, and cheaper than you'd get online). I know this is an inconvenience to many, and I apologize. But there will be the video, and two other excellent speakers, and a show of support would still be nice!
In fact, I am hoping fans will show their support for CFI's choice to have me as their keynote speaker by showing up. I'd rather see my reputation reflected by the number of fans who supported me and CFI by showing, than by the number who bowed out just because I was too sick to be there.