I listened to it on FM radio/NPR because I wanted to hear it in full fidelity without the Internet delay and stutter associated with one to many livestreams. It was way too perfect, inhumanly perfect down to the pauses between the phrases and inflections, such that it has been subject to many retakes or hours of editing. I noted only two false word starts and they weren't even starting with one word and then going with another -- it seemed like the same word.

Not just notable in its lack of gaffes, it was perfect in inter word pauses and enunciation too -- not one extra bit of silence as you'd hear as anyone (even trump) might use to gather their thoughts. As if someone (clumsily) tolerated no error at all.

I'm not just trying to apply some arbitrary low expectation. The speech was more perfect than just about anyone could ever deliver, for its length. I lack the computer power right now but I'd hope there are people going over the video and audio frame by frame to spot splices and artifacts of zoned lip replacement.

I'd also be counting blinks. If you plot eye-blinks over time and note their speed and timespan between it might help to spot editing.