[quote=@whizzball1] I mean, many instances of the same phenomenon (7*8 being weird) doesn't imply a specific explanation. It just implies that the actual explanation probably explains them all. One ad hoc explanation will explain them all just as well as another ad hoc explanation. EDIT: Unless you're talking about several similar phenomena. [/quote] I'm talking about several similar phenomena. The reason this one feels weird is because they next instance of it occurring with numbers is... what? A few hundred? A few thousand? What's the next instance of it after this one? It's definitely high enough that it's not a commonly occurring thing like 7 x 8 can be.