well, may be the corners were dovetailed. perhaps all the dung and urine added to tensile strength the tar. in the bilge of the barge. . but think of the stress form the torrents of a constant a 10 meter an hour rain, hitting the upper slopes first.
wt outlines go from water over Everest to everlasting life. impossible, the fairytale can be laid to rest. the endorsement by J.C.and St. Pete notwithstanding. And the deity himself being the doorman.