@CNN: If you stand in it for long enough, you start to hear your heartbeat. Then you lose your balance, because the absolute lack of reverberation sabotages your spatial awareness. https://t.co/KbdwLzTM2t

@CNN: If you stand in it for long enough, you start to hear your heartbeat. Then you lose your balance, because the absolute lack of reverberation sabotages your spatial awareness. https://t.co/KbdwLzTM2t