I don't know about you but if I let my brain coast in neutral it tends to misbehave. 2 Quick examples.
1 Is eggshell the only common English word with four consonants in a row?
2 A bridge is an architectural device that allows traffic to cross from one side of an obstacle to another, avoiding the obstacle. A ford is a shallow part of a river / creek / stream where traffic can safely wade across. Can we use these distinctions to rate or assign value to Oxford and Cambridge?
So I guess that's why I try to keep busy.
What intellectual flatulence do you have to share?