[Phocion]

That's a stretch. It's easy to get off a "lol" in a second, looking through my own past IMs I see that's happened many times.

As for the five second transition, notice that is a continuation of "good" (8 seconds earlier), not a response to what the teenager said 5 seconds earlier, which was just a "lol".

[jdm]

Okay, then, what about typing two separate lines of text and having them both appear at EXACTLY 7:39:32?

Here ya go: