The psychologist indicated '>99.9' which does not say much to me.
Tip of the hat to Dottie!
what 1:1000 says to me is that unless you are living in one of the few school districts that is well above average, that there is a very good chance that you local psychologist, local teacher, local neighbors have ZERO experience with 'kids like him.' So take what they say with a grain of salt. Or perhaps more salt than that.
Beyond that, there really isn't much more to say. It doesn't say what your child will be like as a grown up, or what his actual current educational readiness level is. But there are a few professionals around the US who have seen bucketfulls of kids 'like him' and are in a much better position to give helpful advice.
BTW - a school doesn't have to have any experience to actual meet a kid's individual needs. They just have to have the mindset that each child is an individual, and that they might have to throw away all the preconcieved notions, that they are willing to find out what his educational readiness levels are across the board, and provide for it.
The interpersonal stuff is harder to accomidate, but not that hard. Your current school doesn't seem willing to do even the smallest things, such as provide a 10$ squeezy apple for your son to mutilate during high-stress moments.
Open mindedness and flexibility are so important. Sadly, it is often true that the more expertise someone has the less open and flexible they act. It's human nature to 'not see' what we believe to 'not exist.'
We talk about LOG (levels of giftedness) here with such easy and confidence. An yet, LOG is still not part of the world-view of most of the folks working in the field of Giftedness.
Shrugs and More Shrugs,
Grinity