No. I often wish that I had sharper eyesight, better night vision, a better memory (a Larry Katz-quality memory would be very nice indeed), my brother's ability to pick up on people's body language, *and* a prehensile tail for those moments when I'm holding a coffee cup with one hand, holding the dog's leash with another, and trying to open the car door so the dog can jump in. (Holding a full coffee cup in your teeth while you try to get an excited dog into the car is not recommended.)
And if only vertebrate life on earth had gotten started with six limbs rather than four... Sigh...
Brad DeLong