I was thinking the same. His website neailpeart.net, which has been taken offline, is still available via Internet Archive (last snapshot July 2019). It appears that all the updates and his last blog post on the site ceased around May 2016 which lines up with the quote, "The cause was brain cancer, which Peart had been quietly battling for three-and-a-half years." My guess, and of course it's purely a guess, is that once he was diagnosed sometime around May 2016, he quietly abandoned whatever he deemed as trivial pursuits. I imagine the blog would be one of those, but writing as a whole? Who knows. I would love to hear that he wrote some type of epilogue to his career and/or thoughts. The content of his last couple essays made me wonder about something like this (what took him.) I feel like the real epilogue is "Clockwork Angels." If you look at that album from a science-minded view, it's about seizing life to live it in the moment and getting as much as you can out of it. I do hope Carrie will share someday about anything else Neil wanted to share with the world. (I have seen what the end looks like with long term cancer. The family and friends might have been very secretive because it is such an awful time and a hard battle. In time she may share. I'm going to keep his family in my thoughts.) I'm definitely going to be spending some time with Clockwork Angels in the near future. I haven't given it the proper attention.