[plt-scheme] HTDP, Section 14 - Flaw in "blue-eyed-ancestor?" ?

Hi,

I might be mistaken but if the function "blue-eyed-ancestor?" is 
supposed to evaluate to true of false for ancestors only, I believe it 
would have to be rewritten.

Also I believe that the "or" version of the function has the additional 
advantage of returning the "child-struct" instead of merely evaluating 
to true of false.

Just guessing here.

Cheers

Guenther