Art of all kinds is displayed throughout the Sydell and Arnold Miller Family Pavilion at the Cleveland Clinic. One of the most intriguing is a hologram tree on one of the lobby walls that changes "seasons" as you watch. Our grandchildren Jackie and Jarrett came along to see Grandpa this afternoon, and Jackie agreed to be part of my photo-of-the-day entry. As for Jack, it's still all systems go for Monday morning's surgery to short-circuit, if you will, the impulses that create heart rate spikes.