Why "Same old ,same old"?!

I'm in diedrich now,my good friend is right next to me and another is sitting right across the table in the corner.The rest are the people whom I see casualy from time to time.Same faces and familiar gestures,some yet are wierdo's,but overal same old,old.By the way ,how many times a day within our mental capacity can we hear this expression?That's the way are lives go by,within the same monotonous events and only in the frame of the very limited humdrum interactions with the world around.Even if from time to time something surprising happens,still is comparable to other days.I wonder ,what makes are lives unusual,so special in the course of everyday life?what should we do about the normality and the sameness of the days that fly by like butterflies?what makes one day special and the other not,and that I guess pretty much depends on how you concieve "special".How come some people play important roles in our lives and others barely can be seen in the margin?why can't we make our days be abnormal and exciting everyday by trying something new,something that us and only us have dared to do it,is it not feasible?I once learned in my upper division math class that the limit of impossibility when one wishes to infinity is zero,so what's the verdict?Don't we need to propogate brave hearts and promote rebel spirits that helps extraordinary dreams to deploy and settle to reality?