Scientific Ignorance Quotes
The major reason for not yet harvesting waste is the labor, caital, and energy costs of recycling relative to the value of the resource is too high. Technology improvements and greater shortages continuously change the equation in favor of harvesting more and more resources.
Chaplin was talking to Albert Einstein when the two of them were the two most famous and well liked men in the world.
Most scientists do not have the skill or the totality of knowledge to accurately predict the effect of scientific research and learning on society. Many are not interested. Those who try to communicate with politicians and the public are usually met with indifference or suspicion. Above all, the scientific and mathematical literacy of the public is so weak, that it is impossible in much of science to even explain the science to the lay public much less explain its implications. Soddy was a bit of an idealist from a class society and he felt the upper classes should be better informed by scientists.