What's at the end of the universe? What would you see if you were there? Is time really "passing" or is it just an illusion? What is emptiness? How does it differ from nothing? What's inside the black holes? Do the universe and life have the same objective? Is there free will? What is the value of life? How was the universe at the beginning and how will it be at the end? To these and many other questions that man has always asked himself since he began to think, the author tries to give answers in the light of the current scientific knowledge he has