“Neutronium is so dense that a chunk the size of a thimble would weigh about 100 million tons.” — Clifford A. Pickover Copy Share Image
“Today, the earth’s continents are home to billions of Sapiens. If you took all these people and put them on a large… — Yuval Noah Harari Copy Share Image
“Taking the estimate of one dollar per kilogram delivered to 75,000 feet and assuming one million tons of material per year, the… — David Keith Copy Share Image
