Here’s why I find the wiki (and image) confusing. For instance, is this a direct quote from Ross or some sort of interpretation? Either way, it should be cited, it’s not clear where it came from:
Beyond the 150 foot Ice Wall is anyone's guess. How far the ice extends; how it terminates; and what exists beyond it, are questions to which no present human experience can reply. All we at present know is, that snow and hail, howling winds, and indescribable storms and hurricanes prevail; and that in every direction "human ingress is barred by unsealed escarpments of perpetual ice," extending farther than eye or telescope can penetrate, and becoming lost in gloom and darkness. Some hold that the tundra of ice and snow stretches forever eternally.
How is this known, especially given the above, to TFES:
The Ice Wall is a natural formation, a thick mass of floating ice that is attached to land, formed from and fed by tongues of glaciers extending outward from deep within the uncharted tundra into sheltered waters. Where there are no strong currents, the ice becomes partly grounded on the sea bottom and attaches itself to rocks and islands. The wall is pushed forward into the sea by glacial pressure until its forward growth is terminated.
How is this known to TFES, seemingly stated as factual:
The weight of The Ice Walls are so enormous that they have literally pressed the land two thirds of a mile (one kilometer) into the earth. Under the massive forces of their own weight, the ice walls deform and drag themselves outward.
How is this known to TFES:
Temperatures are thought to approach absolute zero the further one explores outwards. Exploration in this type of pitch black freezing environment is impossible for any man or machine. We live on a vast plane with an unknown diameter and an unknown depth.