What is the common theme about these three? Elon musk, Jeff Bezos, and Richard Branson. They all are successful entrepreneurs, and, more importantly, they are dreamers. They all are dreamers and founded a company, on top of their other companies, with a goal of sending people to space. Whether you are a dreamer like Elon Musk or Star trek/Star Wars fans as a child, if you want to see a glimpse of what lies ahead of you, Michio Kaku's the future of humanity will be a book for you. In this book, the author walks you through from humans' efforts for leaving the earth, all the way to theoretical scenarios into immortality and advanced civilization, and the end of universe. This book to me was one of the most difficult books to digest, and therefore made me really proud to finish reading. I must admit my knowledge about space was very limited. I don't remember being interested in physics outside of school curriculum. I remember picking up String Theory book in college,...