Challenge 2: How Unreviewed Filler Removal Can Hurt Pacing --
Solution Walkthrough

Automatic filler-word detection identifies patterns like "um," "uh,"
and "you know" and removes them in bulk -- but per this chapter's own
warning, a genuine thinking pause and a filler word can look similar
to automatic detection, especially around silence surrounding a
hesitation. Chapter 2's own pacing criterion specifically recommends
holding on new code for a few genuine seconds before narrating, giving
a first-time viewer time to actually read and absorb what just
appeared. If a presenter naturally paused (with or without an audible
filler sound) exactly at one of those moments while recording, and
the bulk removal strips out that pause along with the actual filler
words, the result is narration that moves from one point directly to
the next with no breathing room left at all -- even though nothing
was said unnecessarily during that pause.

The video ends up feeling rushed in exactly the way Chapter 2 warned
against, not because the presenter spoke too quickly, but because an
automated cleanup step removed the silence that was doing real pacing
work. This is why the chapter recommends reviewing filler-word removal
before finalizing, the same discipline already recommended for
reviewing Screen Studio's own automatic zoom keyframes in Chapter 3 --
an automated pass is a strong first draft, not something to publish
unreviewed.

WHY THIS WORKS AS AN ANSWER
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This exercise checks that the reader understands filler removal as an
automated pass that can't distinguish "wasted filler" from "useful
pause," and can connect that specifically to Chapter 2's own pacing
criterion rather than treating filler removal as an unambiguously
positive cleanup step.