Is there anybody out there? : interplanetary questions for intelligent Earthlings

"Who would have thought that the first extraterrestrial message received on Earth verified by the scientific community would come in the form of a book? And who could have imagined, when opening the book in search of answers, that it would be composed only of questions? Questions, questions, and more questions! What is it like to be human? And what is it like to be you? What is the purpose of gender? How do you know what you know? Is Earth a good...