He'd been in relatively good health and in good spirits prior to his death. What's interesting in light of some of the phenomena in question is that he was involved with computers very early on, working on mainframes in the 50s and was a very early adopter of personal computers.
The other day a Christmas tree ornament showed up in the middle of the living room. Big deal, it's Christmas, right? Well, sure, but we still haven't gotten the ornaments out of the attic yet.