ummmm,i most definately think there can be a six foot ball pythons.there is billions of people on this earth and not many are 7 foot,and ive never seen one but they are def out there.if it wasnt for the guiness book and basketball you would never believe it.so i def think there has been and will be 6ft ball pythons especially since there average is 3 to 5 feet,one extra foot is not impossible and anyone with any bit of common sense should not rule out this possibility.we(the human race)are making new discoveries every day.just my 2 cents