[vba616]

A car can explode, and so can a piñata.

Therefore deciding whether they are interchangeable is a deep question that may take centuries to resolve.

[concordDance]

I don't understand this analogy.

[throwaway1851]

The analogy is meant to show that, while it’s possible to raise deep philosophical questions based on superficial or trivial observations, it can also also be quite silly to do that.