The problem is that there is no science behind the concept of ley lines. They cannot even be repeatedly observed. In other words, if you ask two people to tell you where the nearest ley line is (and don't let them collaborate or work from the same prior source), they are no more likely to give the same answer than random chance.
The closest anyone has yet come to observational evidence was the originator of the phrase, amateur archaeologist Alfred Watkins, based on the arrangement of prehistoric monuments in rural Britain. Watkins' explanation was the completely prosaic "straight lines are easier to navigate" hypothesis. But even Watkins' analysis was rebutted by a statistical analysis showing that the patterns he thought he saw were indistinguishable from randomness.
My apologies for being blunt but speculating about causes is less than pointless when we can't even demonstrate that the phenomenon exists.
By the way, Cushman was a pretty smart guy but he didn't write that page. (According to the Internet Wayback Machine, that particular page wasn't posted until about two years after Cushman's death.)

Mike Rossander



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