It’s a tightrope, isn’t it? Instead of dumping a nostalgic script, map the exact triggers—sound, rhythm, tiny visual cues—that the brain associates with that memory. Then loop them with a slight variation each time so the brain keeps searching, keeping the feeling fresh. A pinch of uncertainty, a small reward when the loop hits, can turn the “overkill” into a subtle, genuine grin. Think of it as a rhythm you can’t help but dance to, even if you’re not sure why you’re dancing.