Impossible, improbable, unlikely? Ever notice how things that are so unlikely, improbable and impossible always seem to happen to you? Well join the club.
I'm not much of a theoretical physicist but I heard about the area of study called "Quantum Physics". It's pretty interesting stuff. I suggest watching the movie "What the bleep do we know?", it is quite interesting and captivating.
Basically things aren't "impossible", they are simply very, very unlikely and improbable. However, they are still possible. If only we knew how to influence those probabilities! Luck is from that same bag of tricks. The real question is who's bag of tricks? 😉
Always expect the impossible, accept the probable and don't forget about the unlikely!