Sorry for mentioning naked ladies in the title, but trust me, it is relevant and not gratuitous sensationalism just to get Google hits. You see Stephen Hawking, who is ok in the IQ department, has said that humanity seriously needs to start looking for a new planet because within 100 years, this one will be pretty much finished, from everything from pollution to nuclear war and the population bomb: http://www.wired.co.uk/article/stephen-hawking-100-years-on-earth-prediction-starmus-festival.
Well, let us suppose that this is so, just for the sake of argument. What is to stop the new planet from being destroyed in record time too? If we can’t save this one, then what likelihood is there of saving the next? And, the one after that? At some point we will reach the limit of space exploration and have to face our own hubris. Why not do it now? In fact, with the slow development of space travel, and the problems of long-term life in space, it is most unlikely that our future will be in the stars:
https://www.wired.com/2016/02/space-is-cold-vast-and-deadly-humans-will-explore-it-anyway/; https://www.businessinsider.com.au/living-in-space-causes-health-problems-2012-7?r=US&IR=T; https://www.wired.com/2012/07/medicine-psychology-space/?pid=4350&viewall=true.
Meanwhile, in his down time Professor Hawking likes to frolic with the naked ladies at a Californian sex club, as far as that is possible for someone with motor neuron disease in a wheelchair: http://www.mirror.co.uk/news/uk-news/stephen-hawking-brief-history-lapdancing-745182.
My guess is that given he has previously said that we had 1,000 years to get off the planet, we should take the latest news with a bag of salt.