The quest for Planet X always starts out with celestial objects behaving badly. Astronomers notice that a known planet, or a bunch of comets, begin moving in ways Newton’s laws of motion can’t explain
A few years ago the city council of Monza, Italy, barred pet owners from keeping goldfish in curved bowls. The measure’s sponsor explained the measure in part by saying that it is cruel to keep a fish in a bowl with curved sides because, gazing out, the fish would have a distorted view of reality