“biat” should be “boat”. You're on the wrong letter — press r then o to replace it without entering insert mode.
i live on a huge biat on the river
Canonical solution: r o · target: 2 keystrokes — the fewest that solve it (every keypress counts).
r{char} swaps exactly one character and leaves you in normal mode. For longer overwrites, R enters replace mode (like classic “overtype”).
| Keys | What it does |
|---|---|
| r{char} | replace one character |
| R | replace mode — overtype until Esc |
| ~ | toggle the case of the character |
Reading about keystrokes doesn't build keystrokes. Try this in a real vim buffer right now — the “One-letter fix” mission takes about a minute.
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