1. Visual synthesizer to synch with popular music to share and jam
2. Wearable thought recorder to predict your future intent (on hold)
3. Anonymous Collaboration to sort 10^12 intents for 10^9 users
The first is pretty far along. I used to VJ semi-pro on a Wacom tablet and then ported it to the iPad (which Apple deprecated when they moved to 64-bit only). Have rewritten in Swift, and in process of redoing the menuing system in SwiftUI. Kids love it and is a subversive way of leaning STEM concepts through play. Demo of the Wacom tablet version (2005) is here: https://www.youtube.com/watch?v=hXlkzZubHnM&t=9s
The second is an Apple Watch centric app that I spent a couple years on. Just raise your wrist to record your thoughts. I released a subset of the idea in the AppStore, but didn't market it. Spent a few more months on updating the design but is now on hold. Old version here: https://apps.apple.com/us/app/muse-now/id1323143774?ls=1
The third is kinda hard. I spoke at the RSA Data Security conference (1998) on how to share interests without a trusted third party. The idea is to combine some homomorphic blinding to sort intent(s) through a massively parallel graph. It's kinda weird because the graph is an asynchronous cellular automaton. I'm not even sure if it is plausible. It's more of a lossy switching network than a static ledger. Somewhat inspired by the work of Goldreich, Micali, Widgerson: https://scholar.google.com/scholar?q=Goldreich,+Micali,+Wigd...