like the title says, lets just say hypothetically you've gone back in time with your cliche time machine, now, ignoring all the rules even having a time machine breaks, you decided to take both it and your shotgun on a joyride and kill Hitler. now hes dead and your traveling back to the point where you left off, but things would obviously be different, so my question is, what would be the repercussions for going back in time and killing Hitler? ww2 caused a lot of changes in the world, so what would it be like without those changes?