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We thought more along the lines of Doogie Howser or a 3 year old that knows all the states and capitals or can tell you everything about every dinosaur that roamed the Earth.

While not Doogie Howser, my 3/4yo did know all the states and capitals and could tell you everything about zillions of ocean creatures. I don't think he will test much above 140 (just basing this on comparison with his sister and where she tested). smile Some kids are just more into the whole "knowledge sponge" thing, I think.