Challenge 1: Recording in Silence and Expecting DemoPolish to Add
Narration -- Solution Walkthrough

This wouldn't work the way the presenter is hoping. DemoPolish's own
workflow depends on the presenter having already recorded some real
narration -- however rough, stumbling, or filled with filler words --
which its script-enhancement step then rewrites and cleans up while
preserving the presenter's own phrasing, before having a studio-quality
AI voice read the cleaned script aloud. DemoPolish is not a tool that
invents narration purely from silent screen actions with no voice
input at all; per this chapter's own correction to Chapter 2's more
general category description, it polishes real narration you provide,
it doesn't generate narration from nothing.

If the recording is completely silent, there's no rough narration for
DemoPolish's script-enhancement step to rewrite in the first place --
there's nothing there to describe the presenter's own reasoning or
even describe what's happening on screen. The realistic outcome is
either no narration being added at all, or at best something far more
generic than what a presenter's own live explanation would have
produced, since the entire pipeline's value comes from refining real
human narration, not fabricating it from silence.

WHY THIS WORKS AS AN ANSWER
------------------------------
This exercise checks that the reader has internalized this chapter's
own key refinement -- that DemoPolish requires real recorded narration
as its actual input, unlike a hypothetical tool that generates
narration purely from clicks -- and can correctly predict what happens
when that required input (your own rough narration) simply isn't
there.