The Download: a humanoid cleans house and Samsung builds for the AI boom

Plus: Almost $2.5 trillion has been wiped off tech stocks. I watched a humanoid robot clean my apartment. It felt like a taste of the future. When I saw an X post about a new humanoid-robot cleaning service in San Francisco, I immediately signed up for the waitlist. I wanted my apartment to feel like, even if just for an hour. The device that arrived at my building belongs to Tau Robotics, a local startup.