This Chair Rocks: A Manifesto Against Ageism

I'm young into the book. 15% out of a lifespan of 100 says my kindle. I wanted to start this review early because I might forget my first impressions later. As I write this, I've already forgotten some of them. I worry about my memory because it used to be better, You know, when I was younger.
The book is about society, a club I never felt a member of. As a child, society was just knowledge. It was the stuff the grownups knew about that I needed to learn. How to talk to other people. How to behave in all sorts of circumstances. I felt I was not a good student. I wasn't failing but I was in the bottom half of the class.
Later, as a teenager, I rejected society. It rejected me first, I felt, but wanted the initiative. I was unaware that all teenagers felt this way -- that my rejection was the correct form of participation.
I stayed a teenager for many decades. This was also much more common than I was aware. As I finally began to get older, I began to learn how typical I was. I wasn't happy about it. It meant that I shared the blame for society. It meant I was racist, sexist, and, yes, ageist. I was also the opposite of these things as I retained my outsider status.
As I read this book, I feel a certain resentment when I'm treated as part of a cohort. I like it when I'm told that we olders differ more from each other than the youngers do. But I do feel that resentment.
Before I picked it up, I knew about ageism. I had, for example, joined the Grey Panthers in my 20s. I also discovered, after being laid off from my last job, that people were reluctant to hire me. Others advised me to leave jobs from more than a few years ago off my resume, and I did. I remembered (back when I was employed and we needed to hire someone) an older man who we interviewed was passed over because the guy he would have worked for said, "I don't feel comfortable supervising someone my father's age."
At 31% (on my Kindle) I just finished the section about the brain, the organ of the body that our culture identifies with consciousness itself. I'm something of a rationality contrarian, which is to say that I don't see life as rational endeavor, and I believe that people are way less rational than they believe themselves to be--especially those who espouse rationality as their religion. This puts me a little at odds with the author who, for all her radical politics, is much more in tune with the scientistic zeitgeist than I am.
I'm done now. They say time speeds up when you get older, a claim Ms. Applewhite doesn't address. (Or perhaps I just read less closely after the beginning.) Politically, I'm on her side. I believe ageism is a real problem that hurts us all. The culture makes it invisible and makes the way olders are treated look rational. She presents a lot of statistics that makes this clear, but I don't feel roused to action. This may be more my own problem than the author's, but I am not unrousable.
More people need to become aware of ageism and take it seriously and this is one of the few books available to address it. I just wanted it to be more like Martin Luther King's "I have a dream" speech.