Then we went to my other roommate's room to tell HIM about that, and laughing about some of the more lurid comments turned into talking politics. That lead to speculation about the ethical dilemma of stopping dangerous presidents from becoming president, and the ethics of time travel to prevent crimes, Minority Report esque prevention of crimes, etc. That lead to discussions of time travel and if we could go back and change X thing from time would we/should we, that spiraled from stopping monstrosities to changing world events, what if scenarios.
Then we started talking about what if we hadn't entered WWI, and then how things would have changed there.
Things got VERY INTENSE. We spiraled out talking about what wouldn't have happened had we not entered WWI, and all the myriad of global changes resulting from that. Entering WWII late. Us never developing or dropping the bomb. Women's independence not being achieved as soon. The UN not being called that or involving us at all. Us not being named a world protector. Us joining the third world coalition. Us distrusting Canada severely due to its links to England. England dropping the bomb. Us forming closer ties with Central and South America. Us de-segregating faster, but getting women's rights slower. Puerto Rico becoming the 51st state. Guam possibly becoming the 52nd state. I really wish we'd recorded this or taken notes, because it was truly fascinating.
Then this spiraled into a hypothetical "window of time" into what we'd wanna see, and history mysteries we'd like to have resolved once and for all.