Wow, that's crazy. You absolutely never know how the most mundane thing can alter the course of your personal or even world history. If you think about it, there is an exact moment of time every day, that if you left for work, you'd be killed in an auto accident. You know, that guy running the red light or person texting while driving or whatever event that normally results in nothing, but if you are just in the wrong place at the wrong millisecond. Honestly, if you think about it, it will blow your mind.
What if Hitler's Dad got that loving feeling just a day before or a day after the day that little Adolf was conceived. How would the world be different today?