I do suppose people can see miracles in different ways. However, normally a miracle is seen as a supernatural act that can only be done by a deity. The idea of supernatural is where the problem is. Nothing that is outside the laws of nature never has or can possibly happen, and the implications of that on the likelihood of God existing is devastating. Now, if we define a miracle simply as something that happens against the odds, or simply one specific outcome happening out of many possibilities, then yes miracles exist. Almost everything can be seen as a miracle in this case, which is a nice way to view life. The disappointing thing is there is still no God involved in such miracles.