nigelswift wrote:
"There probably is a simple calculation for the probability"
If there is I suspect it would only generate a probable probability.
Depending on your yardstick there's no such things as equidistant or exact alignment. Although I guess a shaft of solstice sunlight makes an alignment 365 x more likely to be intentional than other suspected alignments.
Yes what it would involve would be in relation points on map ,as we have in the examples ,and not related to what is found in the real world , where the shortest route between two points for real people is not always a straight line and their outlook is not always governed by measure or number .This of course does not apply to those real world situations where we might expect to find intentional prehistoric equidistance (yet even then , rarely do ) small scale sites like houses ,fencing , distances within monuments etc . i.e. stone rows ,stone circles ,kerbs etc ..
