Stephen Hawking spent the final years of his life convinced humanity had to become a multi-planet species before this century was out — and almost every risk he warned about has accelerated since he died - Space Daily

Stephen Hawking died in March 2018. In the eight years since, the world has done something genuinely strange. It has confirmed, item by item, almost every warning he spent his final decade trying to make people listen to. The climate accelerated past lines he…