That is, the author was more interested in telling amusing stories than explaining science, though he had a go at it ever so often, but didn't leave me feeling notably enlightened. Which is fine. I'm more interested in amusing stories than knowing what a proton does, and for the most part the stories were pretty good. He did some times get sidetracked into non-science stuff that was less interesting, and he was perhaps a little to flippant about serious matters that might kill us all.
The highlights of the book were the nuclear rocket experiments and other adventures that mostly weren't likely to kill us all, but hit the amusing mono-focus that science/engineering types can get into, and also explosions! The assassination part was less intrigue-laden and interesting than I thought it would be, and was mostly very sad. I'm never going to understand quantum entanglement. As far as I can tell, it's witchcraft. Liked the interstellar travel bit at the end, even if none of it works.