This week: the moving meterstick of time; rhythm & the time-keeper of life; explaining this moment in AI to someone who's never used a computer; Substack's bet on trust & attention; and how ownership created massive wealth for Oprah & Michael Jordan

This week: ageing, mortality, & deaths of despair; Chris Hemsworth's genetic risk; a plan to hack the planet straight from sci-fi; Lauren Sánchez steps out; American journalist Evan Gershkovich is detained & charged with espionage.