Sitting in the passenger seat, my pounding heart slowed as the car accelerated. Moments earlier, I had been in Tahrir Square with hundreds of thousands of protesters. The adrenaline was starting to subside when I caught a view of the Saladin Citadel, silhouetted at sunset. It filled me with a sense of calm despite the ever unfolding revolution. In a city of close to 20 million inhabitants, even if a million people take to the streets there are still 19 million at home or at work. It helps to keep things in perspective.