Calhoun's animal companion is named Murgatroyd. I'm not sure why, but consider these two quick google results, for what they're worth:
"Murgatroyd is a surname from old English aristocracy.... Several characters in Gilbert and Sullivan's light opera, Ruddigore, are named Murgatroyd."
Who first said Heavens to Murgatroyd?
Bert Lahr
"The first use of the phrase wasn't by Snagglepuss but comes from the 1944 film Meet the People. It was spoken by Bert Lahr, best remembered for his role as the Cowardly Lion in The Wizard of Oz. Snagglepuss's voice was patterned on Lahr's, along with the 'heavens to Murgatroyd' line. "("Snagglepuss was based on Tennessee Williams, both in terms of his back story being a Southern gothic playwright and also living as a gay man in New York.")
His ship is named the Aesclipus Twenty. Under different spellings, the Staff of Asklepios is an alternative to the now more famous Caduceus, and is a full 3K years old (whereas the Caduceus is, well, wrong).
Leinster was an educated and smart man and that's part of what makes his stories still worth reading.
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Ok done. Goodness that's a long read. Far from perfect, and not particularly recommendable unless you're already pretty sure you want to read it and aren't waiting for my say-so. Anyway, I'm not going enumerate the faults. I have plenty of book darts about interesting stuff to record:
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So, I would love it if *Probability and Human Conduct* by Fitzgerald were a real book. Leinster lays out some provocative insights about psychology in the 'quoted' snippets preceding some of the stories here. For example, Leinster as Fitzgerald talks about avoiding "unfavorable outcomes" (aka accidents. "... whether this process is called the intelligent use of probability, or piety, makes no difference to the facts. It is the method by which unfavorable chance happenings are made least probable. Arbitrary actions such as we call criminal cannot ever be justified by mathematics, for example..."
"Fitzgerald" also wrote *The Practice of Thinking* for which Leinster created this excerpt: "Human error, moreover, is never purely random. The mind tends to regard stored data as infallible and to disregard new data which contradicts it...." (just one example of the many many kinds of cognitive biases we should be aware of as we try to live honorable & successful lives).
Also "An unsolvable but urgent problem may produce in a society, as in an individual, an uncontrollable emotional tantrum, an emotional denial of the problem's existence, or purposeful research for a solution. In olden days, the first reaction produced mass-tantrums then called "wars." The second produced dogmatic ideologies. The third produced modern civilization. All three reactions still appear in individuals. If the first two should return to societies, as such . . ."
I liked so many of the bits of world-building. For example the recording of semi-audible & ignorable background noises of nature, music, conversations, to soothe the mind in the otherwise deathly silent & lonely ship. And the tormal, Murgatroyd, not sapient but still a valuable companion and also medical device.
More things to think about: "It's been known for a long time... that no life-form exists alone. Every living creature exists in an environment in association with all the other living creatures around it. But this is true of compounds, too! Anything that is part of an environment is essential to that environment. So even organic compounds are as much parts of a planetary life-system as—say—rabbits on a Terran-type world. If there are no predators, rabbits will multiply until they starve."
There is one that is particularly relevant in 2020-21: "But it wasn't unprecedented for planetary governments to try to cover up things that would be bad for business. There'd been attempts before now to conceal outbreaks of disease. Some had probably succeeded. Those that failed turned out very badly indeed. Minor epidemics had become major plagues.... But very, very many lives had been lost because of governments subordinating everything but business to business. They'd tried to prevent business crises and financial panics and industrial collapse. They'd only delayed them—at incalculable costs in lives."
Just one more: "Any indulgence frequently repeated would become a habit, in the sense that it would give no special pleasure when indulged in, but would make for stress if it were omitted. Calhoun deliberately went for weeks between uses of his recordings, so that music was an event to be looked forward to and cherished."
(Thank you, Baen, for posting the pdf online so I didn't have to type all that!)
So, inconclusion, read this for the ideas. Not for the super-competent Calhoun or the other characters, not for plots, but for things that will make you go 'hmm...' I didn't agree with anywhere near all of Leinster's theories, nor will you, but they're fun to think about.
Btw, no need to read the stories in this omnibus in any order. In this collection they're all scrambled. You could try according to publication date. Or, maybe, I think, try "The Grandfather's War" first.