A couple of free ideas around embeddings that I would _love_ to see exist
1) music recommendations embedding engine. Basically build the best music recommendation and embedding model. I'm sure spotify is building this, but it would be cool to extend with then a music generation model that generates the perfect song at the right time. Pretty sure spotify recommendations can get 10x better
2) the vibe meter. Take a 10 second video with your smart phone, and then the vibe meter embeds the "vibes" of the current situation using both audio and video embeddings. Some social component where you can share the vibes, and find vibes near you that match a certain look and feel (cozy coffee shops for jamming to music and coding).
I don't really work on consumer things, but both of these could be fun for a hackathon.