Book 66 is For We Are Many which is book 2 of the Bobiverse series by Dennis E. Taylor.
This has absolutely been an original and thoroughly entertaining series for me and one I shall continue to read.
The thing that became painful in this book specifically, was Bob's ego. It's fragile like an entitled white male geek boy from San Francisco. I had to actively try to avoid thinking of how whiney and weak he was while he constantly found he was impressed with himself. I guess replicant evolution doesn't evolve passed white male entitlement... or maybe it is the author.
Nonetheless, after finishing this I have skipped right on to the third and final book of the series.
There is something about the idea of the Bobs that I love. It is the many instantiations of their evolution or their exaggerated biases. I don't know. I simply enjoy them all.
4 growth opportunities out of 5.
Should I read this? Yes to Star Trek explorer kinds of sci-fi lovers.
What did I learn? I am glad there is only one of me in the world. Facing my many versions would be very confronting.