Ok, I can see it now. It would be an amazing thing to watch a child like that grow up from baby to adult. Raising a true genius or close to it. It would be a little scary but must be awesome too.
I should know by now also, to never say "never".
It's both amazing and frustrating - a blessing and a curse. Along with a child being gifted, commonly there is a myrad of emotional problems as well as other issues. It's like their mental age is that of a much older person, but their emotional age is often far less than their real age.
Unfortunately, giftedness doesn't come in a neat package like a real gift. It's just a term for them being able to do things better and faster IN SOME AREAS. Certainly not all areas.
Parents of gifted kids also need to be viligent about their education. Not because they want to push more on the kid, but because if you don't keep a gifted kid motivated and challenged, you can get a druggie or drop out on your hands pretty quickly. Many of the challenges a kid faces with a lower emotional age are the same things that drive other kids to drugs - not fitting in being the most obvious.
Every child needs unconditional love and support - and every child has their own unique sets of challenges and things the parent needs to be aware of and monitor to make everything work while you raise them.
Giftedness can be amazing - but no more amazing than watching a dyslexic child learn a new technique that helps him read, or a physcially handicapped child learn to use their fork better - any of the milestones for that child are just as amazing.
(I know because I had six kids for 5 years to raise. Each had something going on with them - and each thrilled me when they did something new.) It's really not any different WHAT milestones they pass, riding a bike, or getting a Microsoft Certification, it's really the same.