Professor Stephen Hawking predicted that humanity has 100 years in which to leave Earth and colonise another planet in our galaxy. Otherwise, we will join so many other species of life and become extinct. He made this prediction just before he died on 14 March 2017 reducing by 90% his previous prediction of 1,000 more years of human existence on Earth.
Whether we choose to believe Hawking or not, his predication poses a great question: what is our time to extinction? Is it the 4 generations of This Century? Or, the 40 generations of This Millennium?
Will time prove Professor Hawking right? Or, will humanity change to prove Professor Hawking wrong?
These questions trouble me and many others. With deference to the scientific approach, we must seek to disprove his hypothesis. Not prove it.