Pluto was only declared a planet in 1930, apparently with some opposition. So what's a conservative to do--deplore its expulsion as a needless upset of tradition, or applaud it as the restoration of a traditional order upset by reckless innovation? Deep matters....

(In case you're wondering, I had notions, when I was about sixteen, of being an astronomer or astrophysicist. Then I realized how mundane the actual work would be, and how much math would be required. But I look forward to renewing my interest Some Day When I Have Some Free Time.)