🇺🇸 THE ROOM SO QUIET NO ONE LASTS AN HOUR Inside the world’s quietest room, built by Microsoft for $30 million, sound levels drop to minus 20.6 decibels, far below the human hearing threshold. Every wall, floor, and ceiling is lined with fiberglass wedges that absorb 99.99% of noise and echoes. In this silence, visitors hear their own heartbeat, joints, and even blood flow, while the brain struggles without spatial cues. Most last only minutes before dizziness or hallucinations set in. No one has ever made it to a full hour. Source: @homelifehacks1