Bing’s AI chatbot amuses and terrifies. Band frontman Colin Meloy has ChatGPT write a Decemberists song. Trends in experiential design. A metallic print that maps the history of jazz in the style of a circuit diagram of a 1950s phonograph. Graphene-based water purification. Stay off the sidewalks: robotaxis now approved for on-street use in California. Bill Watterson of Calvin & Hobbes fame has a new project coming out. Researchers are working on giving humans a robotic third arm that can be controlled by the brain. A countertop device for making vegan milk. A Valentine’s Day “goat fashion show” in San Francisco. A San Diego brewery uses the airport’s air conditioner condensation to make beer. All that and more in WhatTheyThink’s weekly miscellany.