My parents said i talked very early. I also had a very extensive vocabulary at an early age and talked in complete sentences rather than baby talk before age 2.
My oldest son, not aspie but dyslexic with intense special interests and ADHD traits, said his first word at 7 months old--a very clear "bye!" accompanied by a wave, so we knew he meant what he said. He was talking like a little professor by 18 months or so. My husband's cousins used to babysit him a lot at that age and would ask him detailed questions to hear him talk--he was hilarious at times.
An example from when he was about 3:
"Myriah (teenage cousin), my cat's not doing so good!"
Myriah: "Oh, that's too bad. What's wrong with it?"
DS: (very matter-of-factly) "She's dead."
Myriah: "Oooohhhh. Okay then." (I mean, really what do you do with that?
No sympathy requested, just a statement of fact. )
He could be very emotional over small things, but didn't get emotional over some things that other kids would have. He was sad when the cat died, but the drama of telling people about it trumped his own emotions over the event.
My daughter, Tourette's--not diagnosed aspie but with many aspie characteristics--talked between 12 and 18 months of age but verbalized in a style my grandmother referred to as "talking mush." DD would babble on and on with what seemed to us to be nonsensical words, but they meant something to her. She would get very offended at times when the rest of us couldn't understand her. When we would shake our heads in bafflement, she would repeat the same nonsensical words, getting more aggravated until she made herself understood or gave up. She was past 2 yrs old when she finally became intelligible to the rest of the world. She is now in a gifted program at school and tested in the 99.9% percentile for verbal proficiency for her age when tested for the program.
My DS who is diagnosed aspie talked at about 2 yrs of age. Later than my other two but i chalked it up to not having to talk--his brother and sister talked so much he could not get a word in edgewise. He talks well now, with a slight lisp which he is outgrowing--and is very obviously of the aspie-monologue style of speech.
None of my kids did the baby talk thing. It was complete sentences almost from the beginning.
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"Them that don't know him don't like him,
and them that do sometimes don't know how to take him;
He ain't wrong, he's just different,
and his pride won't let him
do things to make you think he's right."
-Ed Bruce