But you have admitted that the 50-head toss is just as probable as anyother sequence so it is no more improbable than any other sequence.
Yet here we are alive in this world and the summing product of all the probabilites of that being so from all the individual physical, chemical and biological systems we closely observe is effectively zilch. Only the fact that we are, it all is about us just so allows us to even entertain the notion that it ever could be so.