The Fermi Paradox

The caption reads: In the 20th Century, the Fermi Paradox asked why, when life seemed so likely, we could not find it anywhere else in the galaxy. But by the 21st Century, many had concluded intelligent life had a bad habit of destroying any planet where it arose. The image shows planet Earth in space. From various parts of the planet come speech bubbles reading "Hello, is there anyone out there? Anyone at all?" and "Only snowflakes think global warming is real."
The caption reads: In the 20th Century, the Fermi Paradox asked why, when life seemed so likely, we could not find it anywhere else in the galaxy. But by the 21st Century, many had concluded intelligent life had a bad habit of destroying any planet where it arose. The image shows planet Earth in space. From various parts of the planet come speech bubbles reading "Hello, is there anyone out there? Anyone at all?" and "Only snowflakes think global warming is real."