"Value truthiness" - everything here is correct, but perhaps this should be explained: ``` julia> true * 6 6 julia> true + 8 9 julia> false + 8 8 julia> true + 64.7 65.7 julia> 6 + (true)im 6 + 1im ``` (That is, true evaluates in numerical contexts to 1, and false to 0.)