“At the age of 8, my friends and I would play a game while walking home from school. One of us would call out: Imagine the world and how small we are! And then another: Imagine the distance between us and the moon! Then, the sun! Then, Imagine us in the middle of this entire solar system! And the peak: Imagine the end of the universe! The end of the universe? This would blow our minds and imaginations – literally making us lose our balance,  fall to the ground, laughing uncontrollably.”