Blumetti has used his extensive knowledge of history to explore alternative histories. He has not stretched the imagination, but rather tried to explode alternative outcomes that actually could have happened. In 1769 Napoleon's parents almost fled Corsica to the American colonies, by way of England, but decided to remain on their island. But what would have happened if they had settled in New York, just a few months before Napoleon was born? Blumetti also explores what might have happened if the Germans had attacked Moscow, instead of Stalingrad, in 1942, or what if the Japanese had entered the Second World War in 1940, instead of 1941. What if the Allies, in World War One, were victorious in 1916, or if Bismarck had united Germany and Austria in 1866? These and other counter factorial histories are explored in What If?: Alternative Historical Tielines.