I know I am a pretty strong guy and I certainly ain't that tall either. I know in my mind there is no way me or anyone else could dig down to a hole past 8 feet deep and just hand someone a bucket of dirt!
As my theory is the platforms are at certain levels, someone in the bottom of the hole filled a bucket with a rope to it raised by a person on the above platform and dumped the contents into another bucket and the person above hauled the dirt to his platform and so on until the person outside the hole dumped the dirt out and passed the bucket back down.
I think that may be why there was a block and hoist still in the tree, to hoist the buckeys of dirt up to dig deeper
As my theory is the platforms are at certain levels, someone in the bottom of the hole filled a bucket with a rope to it raised by a person on the above platform and dumped the contents into another bucket and the person above hauled the dirt to his platform and so on until the person outside the hole dumped the dirt out and passed the bucket back down.
I think that may be why there was a block and hoist still in the tree, to hoist the buckeys of dirt up to dig deeper