Not sure it's related to giftedness...but I do know my DS talks a LOT. He does take breaks though. If he is really working on things or figuring them out he is quiet for a little while. He's quiet on the computer sometimes and when he watches TV. Whenever DS is quiet he is thinking very hard about something and whenever he figures it out he tells us all about it...in detail. On Saturday he was quiet for a minute in the car and then told me "I am running out of paper in my mind. I have piles of paper for my thoughts but I already used up 3 packs of paper that has 20 sheets each so that's 60 sheets and I don't have any more left" to which I replied "well sounds like you need more paper" Of course the conversation went on for a while. My DD is 18 months and she talks a little but she sings ALL day long, Oddly enough her songs are easily recognizeable based on rhythm and notes...but the articulation needs some work. ; ) It's pretty fun to watch. Her favorite is "E I eh E O" That's BINGO for those of you who didn't get that, LOL.