First off, I know why it didn’t happen. But
“Once the war against Nazi Germany was over, Patton spoke of “pushing on to Moscow,” if need be with help from what remained of the Wehrmacht, while Montgomery called for the immediate establishment of “a flank facing east.” In Patton’s view, the United States had come to Europe to give the peoples there the right to govern themselves. The Nazis had denied them this right, and now the Soviets were threatening to do so. Thus America’s “job” in Europe was not yet done. “We must finish the job now, while we are here and ready,” he declared in May 1945, “or [finish it] later under less favorable circumstances”
No Cold War, democracy to all of Europe 50 years earlier allowing it to start spreading from then, rather than the 90s. Less military spending, and a US nuclear monopoly for much longer.
On the other hand, many of the advances of the last century were brought on by the military. Would we have still gone into space, invented the internet? We would have more resources to do so, but would the drive to do so have existed? What does the Dope think about this?