Brownies? Cake? You say "tomato..."

Lately, as should be expected, I guess, Soren has definitely developed more of an independent opinion about many things.  He speaks in pretty complete sentences and surprises me many times with the correct use of different words that I didn't know were actually incorporated into his vocabulary.  It has made life easier in some regards and, yet, much harder in others.  He is now much more opinionated about which breakfast cereal to eat in the morning, which book to read at bedtime, which car to play with, which movie to watch, etc.  He often says, "No, I don't like that one" over and over until I find the "right" one for that day. 
Just the other night we had some friends over for dinner and I made brownies.  Later that night, the pan of brownies was sitting out and I was in the kitchen snitching a piece.  Soren heard me (have I mentioned yet that he has BIONIC EARS when it comes to food??? Forget sneaking anything, especially with a wrapper, even if he's in the other room!) and came in the kitchen.  Of course he asked what I was eating and I told him it was a piece of brownie.  He said, "Oh.  Brownie.  It's cake."  I replied, "Yes, you're right, Soren.  Brownies are like cake."  He gave me this very serious look and said, "No, Mommy, it is cake." (Like, duh, Mom, what are you trying to pull on me? I know cake when I see it.")  I started laughing, because this is SO typical these days, and I guess he was basically right.  Silly me.  I should have known.

(And, yes, it is 3 am and I am at work right now.  Not imaging any patients at the moment, but suffering from hospital-gurney/pregnancy-induced insomnia.  I really should at least try to get some sleep.)