It’s only been a few years since the beginning of the 21st century, which was hailed as a new dawn for humanity. And yet, these are paradoxical times. From the catastrophe of war, terrorism, pestilence, disease, and pollution to the extinction of many forms of life on the planet, we have become eyewitnesses to the greatest changes and challenges humankind has ever faced. We can no longer pretend that the world is the same. Our perception – the way we experience our environment – is forcing us to look around with wide-open eyes.