I won't of course but it did cross my mind tonight as I watched my blind, child (4 years old) who is profoundly disabled roll himself across the floor to the tree. He then reached out to try to grab a red bauble (one of the colours we know he can see), the look of concentration on his face was amazing. I was only saying to his teacher the other day that I rarely, if ever, see him try to use his hands, he usually holds them fisted, close to his body. He rarely uses his hands and he even more rarely tries to hold something yet he is driven to explore the tree and all that it holds (it's all red and silver, red for him, silver for me). He loves the lights on it, I don't put the room lights on so he can make the most of his sight and I do sigh inwardly as he wrecks it again but mostly I just love his enjoyment of it.