Investors are deciding within 15 minutes whether to shovel millions into A.I. start-ups and taking entrepreneurs weight lifting and rock climbing to get deals done.Colin Roberts, left, and Vivek Nair, the founders of Multifactor, an A.I. start-up, fielded interest from more than 250 investors and raised more money than planned.

Users say Auzi’s decorative covers and jewelry attachments have changed the way they feel about wearing the devices.

Some British business owners are determined to keep their access to American consumers, but they are facing trade-offs.

Neros, a company founded in 2023 by former teenage drone racers, won a coveted Army contract and is gaining popularity in the defense sector.Soren Monroe-Anderson, left, and Olaf Hichwa, the founders of Neros, a drone manufacturer, at the company’s offices in El Segundo, Calif.

Everything in the shop appeared to have been abandoned. A devoted customer took it all home and started selling the items herself.Vicky Szuflita filled an empty house with thousands of articles of clothing from a closed vintage store in Cordele, Ga.