Open question, posted to the Internet, as quoted in The Guardian, and "Watching the World" in Awake! magazine (June 2007); a month after posting the question he explained: I don’t know the answer. That is why I asked the question, to get people to think about it, and to be aware of the dangers we now face.
More quotes by Stephen Hawking
You may also like
Attribution
Quote text and notes from Wikiquote: Stephen Hawking (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.