I said, “You mean there is a fifth force — why didn’t you say so? Just give me the equations for this force and I will add it to my model.”
Conditions on Earth, the laws of physics, are not only fine-tuned for the survival of intelligent beings, they are fine-tuned for the development of technology.
The importance of metals, particularly iron, and the importance of the discovery of metallurgy can hardly be exaggerated.
We may think that we’re untouched by trends in thinking that go on far away. In a science lab or a science classroom, for instance. But that’s wrong.
You do not need to study mutations for thirty years to predict that bombarding plant chromosomes with radiation will not lead to major agricultural advances.