How long is 'now'? The short answer is 'somewhere between 2 and 3 seconds'. The long answer involves an incredible journey through neuroscience, our subconscious and the time-bending power of meditation. Living in the present may never feel the same. Ready for some more? Okay. Why isn't Pluto a planet? Why are dogs' noses wet? Why do hens cluck more loudly after laying an egg? What happens when one black hole swallows another? Do our fingerprints change as we get older? How young can you die of old age? And what is at the very edge of the Universe? Life is full of mind-bending questions. And, as books like What If? and Why Don't Penguins' Feet Freeze? have shown, the route to find each answer can take us on the weirdest and most wonderful journeys. How Long is Now? is a fascinating new collection of questions you never thought to ask, along with answers that will change the way you see everything.