What basis do you have for claiming that it's impossible? All you know is what you have from your experiences. Now, I'll admit that it's rare to find such a thing to happen, but it's not impossible.
You might as well be arguing that there is an Easter bunny, because no, I don't have proof that there's no Easter bunny, but that doesn't make your claim that there is one anything less than complete BS.
I go to Capital Grille. I'm not going to wake up the next morning and have no desire to ever eat a steak at the Outback or anywhere else. (don't argue that I'm not truly in love with the steak, because that's not the point... and I am! 
). It's the same thing. Preferences change, but a switch isn't thrown one day and you say "I only have eyes for you". Anyone that has ever said that is full of it. You can't be attracted to one person, yet find those same set of qualities unattractive in someone else.
The highschool feeling part is SAYING that you'll do it and then wimp out when push comes to shove. It's part of the "law" when you actually do it.
No, it's a high school feeling to even think it. Through thick or thin, sickness and health... sure. Eternity of pain for a split second of company? That's either high school or a really bad monster ballad.
How else would anyone know that something is both possible and probable?
Well, elaborate on it... what, in your life -- experience or link or whatever -- has shown you that both are possible & probable?
You know that this statement of yours shouldn't even be dignified with a response.... 9 short flings, and 1 that was known although not a relationship.
Sure it does..... Before people take love advice from anyone, they like to know where that advice is coming from.
Pointing out some facts does not make anyone an expert. I can point out that one plus one equals two, the diaganols of a rectangle are equal to one another, and sine equals csc(90degrees - Pi), but that doesn't make me a math expert. As I stated about the statistics, those were rough estimates that I provided to give an idea of how probable it was.
This is weak and you know it. Pointing out a mathematical fact is FAR different from stating a fact on love. When someone says something is a fact about a subject as ...what's the word... a subject like love, you're implying you either know an awful lot about love or have had quite a bit of experience in love.
You--specifically--are going to wait four years to hear the story. You don't seem to take information from people very well unless they're completely adults...if you'd like to try to disprove that, go ahead
Sure -- Psicosis. For a long time I thought he was as old or older than me, because (sometimes) he can act like it. Knowing that he's your age hasn't changed anything, because he can still (sometimes) act older than he is. It's not age. It's you 