hello, Neon304
all i can say to you is that you may have conversed with aspies without noting anything out of the ordinary because they seemed not different from yourself. i know i have. i had a personal physician who i am pretty sure had strong aspie traits- he seemed retiring but kindly, and very intelligent. he was one of the few highly intelligent people i have met who didn't wear it on the sleeve.
i have conversed with many tech support folk over the phone, and i would bet good money that the lions' share of 'em were aspie- they were not often kind, understanding or patient. a lot of 'em talked AT me rather than to me as though i were just an irritating chore to be dispatched rather than an actual real live human being with feelings. i was not impressed. unfortunately, they reminded me of myself sometimes. unpleasant.
i met a child in the supermarket, who confronted me while i was perusing the tins of tomato sauce, and asked me in a stentorian monotone, "do you know where daddy went?" [not MY daddy]. in the military i met many folk who in retrospect i would have to say they were at least somewhat aspie - they were a legalistic, humorless bunch who would just as soon have offed me as given me the time of day.
if you were to talk to me, you would notice that if given half a chance, i would perseverate over my hobby of digital signal processing. other than that, i would be pretty quiet as i'd be busy listening to you and taking in what you were saying to me. when i did talk you would notice unusual prosody of my speech, with a halting rhythm, alternating between monotonic [at various registers between bass and tenor] and exaggeratedly sing-song. you would notice my eyes alternating between shiftiness and total aversion, gazing meditatively around at objects in the room rather than at your face, but when i did look at your face you might find my eyes "drilling" into yours. you and i would find the conclusion of conversation to be an awkward thing, with a lingering good bye. if you were me, i suspect you would not want any further meetings.
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just my 2-cents' worth, adjusted for inflation