After some cogitation, it is difficult not to agree with Herman Bondi (1919 - 2005), who in his book 'Relativity and Common Sense' says:... The surprising thing, surely, is that molecules in a gas behave so much as billiard balls, not that electrons behave so little like billiard balls.
Felix Alba-Juez, E=mc^2: The Most Famous Equation in History... and its Folklore
epistemology, philosophy, science