Most people read off a Google Doc on a second monitor and scroll by hand. Go off-script and you're lost.
Promptly fixes that:
1. Scrolls with your voice, not a timer. The line you're saying is lit up.
2. Auto-recovers when you wander. Answer a question, come back, it finds your place.
3. Outline mode for longer talks. Trigger cues on demand.
4. Invisible on screen share (macOS content protection).
5. Drop [[slide:next]] or [[app:Keynote]] inline. Your script becomes your remote.