The reality of what Gould said is not necessarily the truth. And he said so when he said
You can't see gravity, can you? But you can see its effects, obviously. Can you see evolution? Some say you can, not from its effects but from the genes. Staying on the subject of comparing gravity with evolution, gravity can be seen only by its effect on objects. Evolution can be seen only by comparing genes and looking at fossils. Not the same thing.
Gravity = not seen except by effects.
Evolution = not seen as well as figuring of similarity of genes and conjecture also taken from fossils, yet not seen. Gravity has lasted a long time. Still happening. Evolution is said to have started millions of years ago, no evidence of it still happening. Similarities of genes do not mean macro or micro-evolution.