Why Humanity Should Leave Earth When should humans leave Earth?Why does Stephen Hawking want us to leave Earth?Why do we stay on Earth?What is Stephen Hawking convinced of?Will humans go extinct?What

Why Humanity Should Leave EarthWhen should humans leave Earth?Why does Stephen Hawking want us to leave Earth?Why do we stay on Earth?What is Stephen Hawking convinced of?Will humans go extinct?What does Stephen Hawking say is the only chance of long term survival for humans?What is the future of humanity?Can humans live on Venus?Will humans live on Mars?