The question in its most simple form was WHY was the whole twice the sum of the parts? It made no sense to them so they sought to answer that question.
Because they had what all creative inventive imaginative people have! CURIOSITY. UNQUENCHABLE CURIOSITY.
It begins by noticing observing being aware and then refining it to focus on what doesn't make sense. To make sense out of it. A driving essential. Never giving up until an answer is found and then going on to other things.
So many people are INCURIOUS. They do not notice disparities or that whic is illogical. They simply accept what is and move along doing what they are told by those whom they allow to do their thinking for them. Sheeple.
Contradictions? Hypocritical untruthful assertions? Obvious distortions? If they notice they are indifferent and have no desire to pursue answers or find solutions. Why are so many so lacking in curiosity/awareness? Why don't they care? Too many care about what they shouldn't and don't care about what they should. Lazy? Ill-equipped? Disengaged uninvolved aloof distant closed off? Take your pick. They take but are not inclined to give. The SOP of ordinary average typical nothing special homo saps. A pity. A brain is a terrible thing to waste.