Challenge 2: Why the Presenter's Own Judgment of Pacing Is
Unreliable -- Solution Walkthrough

A presenter demonstrating their own code has already written it,
often minutes or hours before recording, and has already read and
re-read it multiple times while building and testing it. By the time
they narrate it on camera, reading that same code back is close to
instant for them -- they already know what every line does, so
there's nothing left for them to actually parse or figure out. This
is a real version of the "curse of knowledge": once you know
something well, it becomes genuinely difficult to accurately judge
how long it takes someone encountering it for the first time to
absorb the same material, because your own experience of it no
longer resembles theirs at all.

A first-time viewer has none of that head start. They're seeing the
variable names, the structure, and the logic for the first time, and
have to actually trace what's happening rather than simply confirm
what they already expect to see. A presenter who moves on the moment
THEY feel finished with a code block -- which happens almost
instantly given their own familiarity -- is, from the viewer's
perspective, moving on long before the viewer has had a comparable
chance to actually read and understand it. The presenter's own sense
of "that felt like plenty of time" is measuring their own re-reading
speed, not the viewer's first-read speed, which is why it's an
unreliable judge of whether the pacing actually works for the
intended audience.

WHY THIS WORKS AS AN ANSWER
------------------------------
This exercise checks that the reader can articulate the "curse of
knowledge" mechanism specifically as it applies to code pacing --
not just asserting that presenters go "too fast," but explaining WHY
their own subjective sense of pacing is structurally unreliable as a
stand-in for a first-time viewer's actual experience.