My point is that God does not break the laws of science that He created.
The example I posted was to illustrate that when He says no, it is because He has something else in mind for us. You see, I DIDN'T pray for the use of my hand, so He didn't say no. But if I HAD, He would probably have said no and shown me the joys of playing harp instead.
As it was, I just accepted His will and He showed me the harp anyway. And it was through playing harp that I met a wonderful family who greatly enriched my life. So, whether I prayed for one thing or another, He gave me what I NEEDED, not necessarily what I WANTED. And He did it all within the boundaries of the laws of science.
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My point is you would be in the exact same place, prayer or no prayer. Except for some reason, you feel better about it.