The main environmental challenge of the 21st century is poverty. When you don't know where your next meal is coming from, it's hard to consider the environment 100 years down the line. ↗
At that moment Mr. Clifford, quite unconscious that he and his most personal feelings and aspirations were subjects of discussion, was turning from the main road into the lower road. ↗
The main points were: one, the amount of Israel's nuclear weapons, how many Israel had, that no one could predict or know, including the CIA. They were thinking about a number like 10 or 15. But I came out with a number between 150 to 200. ↗
The standard growth theory tells us that economic growth in per capita basis comes from mainly two sources: capital deepening and total factor productivity growth, or TFP growth. ↗
Well, the thought that everybody might have a personal computer at their desk or their home was certainly not on the mainstream of anybody's activity at that time. ↗