Challenge 3: Why a Full Restore Is the Wrong Fix Here — Solution Walkthrough

What would go wrong with a full restore:

Restoring the version from before the paragraph was deleted reverts
the ENTIRE document back to that exact earlier state — which also
throws away all 3 hours of genuinely good, unrelated new work added
since then. The colleague's suggestion would "fix" the missing
paragraph by trading it for a much bigger loss: every other edit made
in the intervening 3 hours would disappear along with it, since a
restore has no way to selectively bring back only the one specific
piece of content that was actually wanted.

The correct alternative:

Open the earlier version (via View History, without clicking Restore)
and manually copy just the deleted paragraph's own content, then
paste it back into the CURRENT, fully up-to-date version of the
document — preserving all 3 hours of subsequent work while still
recovering the specific piece that was lost.

WHY THIS WORKS AS AN ANSWER
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This is a direct, hands-on demonstration of this chapter's own
warning box: "restore" and "recover a specific piece of content" are
two genuinely different operations with very different consequences,
and defaulting to a full restore for what's actually a narrow,
partial recovery need risks discarding far more good work than the
one piece of content it was meant to bring back.