14 children have died in hot cars in 2023. Heat waves have made it more dangerous.

Dubbed “Crackberry” by ardent users—Webster’s New World College Dictionary proclaimed it the Word of the Year in 2006—the impact and influence of the BlackBerry device in the early 2000s could be found everywhere. It featured in pop song titles and explicit rap lyrics; Kim Kardashian was a loyal user; former United States president Barack Obama famously said he was “clinging” to his BlackBerry and that they would have to “pry it out of [his] hands” when he entered office. Key points After BlackBerry’s mobile business faltered, the company pivoted to cybersecurity and software QNX, an...