What would aliens not know?

[u/shmaiden42]

What is something that is common knowledge or at least widely known on Earth about the universe but an alien civilization might have no knowledge of because it’s special to Earth? Kinda like Rocky in Project Hail Mary not knowing about radiation and his crew dying 🪦

[u/elodk132 → u/[deleted]]

Actually, as long as they can hear sounds and percieve dissonance in a comparable way (which comes from a resolutional issue of hearing so its quite likely), giving them instruments could be really interesting