I read
Scott Adams' blog (the Dilbert guy), and I've also read some of his books. One of them,
The Dilbert Future, has a section at the end where he waxes poetic about the limits of human perception. I recommend that you read it; he makes some excellent points which I won't go into, but he describes a particular arrangement of Multiverse Theory that I found to be fascinating and plausible.
I'm not going to describe his theories; you should read the book for yourself. The reason I bring it up is because I remembered yesterday that Bill Murray's role in Ghostbusters had originally been written for John Belushi. So, in a (perhaps distantly) parallel universe,
Belushi is the guy who says, "Egon, your mucus."
Just think about that for a second: can
you see him pulling off Venkman? 'Cause I'm not buying it.
In fact, I'm going to say something the older readers may not like: I don't think Belushi was all that funny.

I've seen the Samurai skit with the sword-chopping, I've seen
Animal House, I've seen most of
Blues Brothers...whereupon I turned it off because of disinterest.
You might say there's a cultural / generational gap that prevents me from being amused by him, but I like all the other early work by the classic SNL / SCTV crew; Akroyd, Chase, Moranis, Levy, Candy (God love him), Ramis...heck, I even think Martin was sorta funny.
So, I'd categorize Belushi as the
least funny guy out of this bunch, but Murray as - by
far - the funniest. Because of this, I find it
amazingly interesting that Murray's career might have been vastly minimized if not for Belushi's death.
Belushi in
Ghostbusters? No, thank you. It sucks that he went out like that, but dude was no Dr. Venkman.