German President Albert Einstein

So, Albert Einstein is the new President of Germany, under Chancellor Erwin Rommel. Ten divisions of American troops are there to keep the peace, but the German military retains many divisions on its eastern border with Stalin's Russia, which corresponds to the old boundary from before the First World War. The Nazi Party has been dissolved. What next? Why, German President Albert Einstein will negotiate a peace between America and Japan, of course. Japan will agree to withdraw from all of China, retaining only limited imperial control of Korea and Taiwan. Otherwise, they will face the combined might of the entire world, as Stalin's ambassadors make very clear. Emperor Hirohito intervenes directly at this point, broadcasting to the Japanese people that Japan has reached peace, with honor, and will give the Chinese people their freedom. The Manhattan Project is terminated short of completion, the Atom Bomb is never built, there is no nuclear age, there is no military need for it. The field of physics returns to being a small, arcane discipline. We have a multipolar world, rather like the current one. As a result, totalitarian governments in Japan, Germany and Russia are forced to adapt to a competitive, capitalist world market. All three are forced to adopt degrees of democratic reforms in order to compete effectively. There is no Cold War. There is no Arms Race. Werner von Braun is no longer of such great interest to America, there is no systematic development of ballistic missiles on the Russian or American side. Without ballistic missiles, there is no need for microcomputer technology for guidance systems, computers remain large, bulky contraptions of very limited application. There is no Space Race, there is no NASA, there is no exploration of outer space. Science and technology are largely limited to medical advancements, for which people always have a demand.