Pacifier

How can a "what if" scenario be proven Fact?

Japan could have surrendered in the second your soldiers set a foot on japanese mainland.

The mentioned "shock effect" could have also been achieved by dropping the bomb in the sea a couple of miles away from tokyo.

all in all the bomb was a demonstation, a threat to the world what the USA is capable of, and that the USA is willing to use such weapons.

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"It seems to me that the idea of a personal God is an anthropological concept which I cannot take seriously. I also cannot imagine some will or goal outside the human sphere. Science has been charged with undermining morality, but the charge is unjust. A man's ethical behavior should be based effectually on sympathy, education, and social ties and needs; no religious basis is necessary. Man would indeed be in a poor way if he had to be restrained by fear of punishment and hope of reward after death
— Albert Einstein