In a Guardian essay, the world-re**wned physicist made the case for a more comprehensive and generous definition of wealth "to include k**wledge, natural resources and human capacity."*
**ticing that we're living in "perilous times," Hawking lists all the multiple challenges that the planet and human race face: climate change, food production, overpopulation, the decimation of other species, epidemic disease, and acidification of the ocean. Read more...