What role did the arms race play in the downfall of the soviet union

Historians are concerned with the accuracy of their writings and readings but are also aware of the inability of authors to know every angle of every story biases, perspectives, beliefs, and a variety of other differences history being told by one person at a time no one being totally accurate, as hard as we try really need on this, and you^^

How did german physicist werner heisenberg's uncertainty principle shake beliefs in newtonian physics?

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