Explain why some years were called artificial intelligence winters

In the history of artificial intelligence, an AI winter is a period of reduced funding and interest in artificial intelligence research. The term was coined by analogy to the idea of a nuclear winter. ... Three years later, the billion-dollar AI industry began to collapse.

apart from being against desegregation, governor of georgia eugene talmadge opposed as well to the work progress administration, an ambitious program of the "new deal" created by president franklin d. roosevelt to overcome the great depression after world war i. talmadge disagreed with welfare spending, job training and organized labor. according to his ideas, he thought the government was spending too much money on this, and he wasn't willing to accept a wage higher than georgia's lower average wage. besides, talmadge strongly opposed to the "new deal" as he thought it had communist ideas.