Dr. Hawking's recent turn toward morbid pessimism is unfortunate. He is saying things that, if they weren't coming from him, most scientists would laugh at. It's sad that such a great physicist and science communicator is tainting his legacy with nonsense.
While brilliant, Stephen Hawking states uninformed opinions, like when the theoretical physicist claimed a few years ago that "philosophy is dead." In an upcoming documentary, Dr. Hawking says humans must flee from the planet because of "climate change, asteroid strikes, epidemics and overpopulation." But he's wrong on every single count.