We couldn't detect ourselves from 3 light years away so why does the Fermi Paradox treat silence as evidence

The Fermi Paradox Makes a Fundamental Mistake The Fermi Paradox begins with a reasonable observation. The universe contains hundreds of billions of galaxies. Each galaxy contains hundreds of billions of stars. Most stars have planets. The universe is 13.8 billion years old. By any reasonable probability, intelligent life should have emerged many times with some civilizations potentially billions of years ahead of us. So where is everyone? This question has mesmerized scientists and philosophe...