A personal wearable AI
I recently flew to SF to help my friend Avi announce his startup to the world. He's been working on this necklace that listens in on all your conversations and has full context on everything going on in your life, which allows it to give you hyper-targeted advice and answer your questions in a way no other AI assistant can.
He's done an amazing job building the prototype, and on my last night before flying back I offered to pull an all-nighter and "upgrade" his backend with a focus on scalability. I managed to make it more than 10x faster and clean up the code quite a bit, and became the second human ever to own a Tab!