Chicken Soup for the predesigned soul !!!!!

PREDETERMINATION.......have u been predestined to read this in some way....naw....u guys can stop anytime...!!!!
Well...it all started at dinner tonite....i was happily enjoying my chicken when....Wham.....out of the blue....one of my seniors made a crass statement..... " Any event or action in this universe has been preset...predesigned and I can prove it....logically. " I was like..." How did this guy's grey cells come up with as tasteless a concept as that....with something as beautiful as a crisply delicately fried chicken in front of him ? ".Probably picked up some whiff of it from the MATRIX...the concept...i mean.
Anyway...that got me thinking....what is in some ' predetermined ' way he was right !!!...he deduced as a corollary that there is no existence of choice...Now i can say that his deduction was also predetermined leaving him no choice....but to come to that conclusion...that would directly contradict his statement as well as indirectly dis mine(the one in red)....and we can go on and on like this........
But lets suppose he's right....we have no choice....then does that mean (1) we have no control over our actions or (2) we do not know why we do what we do.Either way....i am thoroughly satisfied with the chicken and i have no qualms about that....BUT BUT...if (1) were true...it means im no way responsible for any of my actions....then who the f*** is ??? and if (2) were true then there is no sense in doing anything bcoz its outcome is unknown and irrevelant to you....!!!!
For Pete's sake....he was trying to comment on the commentary of a physical system of which he was a part....i dunno the actual mathematical or physical principles he's grossly violating(any reader is welcome to help me out here) but it doesn't feel right....but who knows maybe the feeling has been predesigned...what do u say...huh....!!!