Beyond the Drake Equation: Multiscale Intelligence and the Arrival We Failed to See

## **Opening Summary: A Simple Guide to What This Article Is About**People have long wondered if we’re alone in the universe—and scientists have created different methods to estimate how likely it is that intelligent life exists on other planets. One of the oldest and most well-known is called the **Drake Equation**, which tries to guess how many civilizations might be out there sending out signals we could detect. Other models focus on looking for signs of alien biology or guessing how civ...