what would the world be like

On November 23, the movie Bobby will go into wide release. At its showing at the Venice Film Festival, it received a seven-minute standing ovation, according to Wikipedia. I know people laud JFK as a great man, a great leader, etc. But I wonder what would have happened if Sirhan Sirhan hadn't assassinated Robert Kennedy. Would he have won the presidential election? How would he have changed the world? He had so much promise. Would we have stayed in Vietnam so long? Maybe our lives would be at a political polar opposite.

I realize that wondering all of this isn't doing much good. Bobby Kennedy was gunned down in 1968. I'm waiting to see another candidate with as much potential rise up. I hope I don't have to wait too long.