What if the great events in history had turned out differently? How would the world today be changed?
Niall Ferguson wonders about this a lot. He's a well-known economic historian at Harvard, and a champion of "counterfactual thinking," or the re-imagining of major historical events, with the variables slightly tweaked. In a 1999 book Virtual Histories, Ferguson edited a collection of delightfully weird counterfactual hypotheses. One essay argued that if Mikhail Gorbachev had never existed, the USSR would still exist today. Another posited an alternative 18th century in which Britain allows its colonies to develop their own parliaments -- so the Americans never revolt, and the USA never exists.
The essays were fun, but Ferguson really craved a more holodeck-like experience. He wanted to have a computer simulation that would let him set up historical counterfactuals -- based on real-world facts -- and then sit back to see what happens. "I was always thinking that one day the right technology would come into my life," he told me.
Last year, it finally did. Ferguson was approached by Muzzy Lane, a game company that had created Making History -- a game where players run World War II scenarios based on exhaustively researched economic realities of the period.