funny story. Following Tropical Storm Isaias' passing, we had probably 5 or 6 old black oaks come down (babies compared with the OP's tree). we have a pretty big property so 2' to 3' oaks are a dime a dozen. I walked the property after the storm and found two of the oaks leaners on adjacent trees that I noted the location of to keep the kids away until I got them down (eventually). One night about two weeks after the storm, it was pretty windy and while in our back yard at the firepit, heard a tree off in the woods come crashing down. Couldn't see it; only could hear it. Went walking the next day and it was one of the two leaners I found two weeks earlier. Next night, same windy situation, walking the trash out to the curb and off in the woods, another crashing sound. confirmed the next day that it was the other leaner I had found previously. So I can confirm without a doubt that a tree falling in the woods does in fact make a sound whether it was seen or not.The philosophical question is did it make a sound?
What is needed here is an "Excalibur" style picture of a chainsaw with a Hughe Jass bar plunged into a large round.