..and that's why it is best to know what one is talking about! Just as your assumption was wrong about Lighter's post, it can be, and is the same with other subjects.
So in the final analysis gathering up info without preconceptions is best...wouldn't you say?

This has been an excellent illustration, and should be put to good use...unless learning is only confined to non-practical applications. I hope not!

Regards,

GfS