From Richard Deacon, London, UK
While I remain in awe of the detective work that has gone into suggesting a Scottish origin for the altar stone at Stonehenge’s centre, I remain dumbfounded by the belief that it was human agency that brought it there (24 August, p 16).
Surely a far more believable story is that the stone was there anyway somehow and our Bronze Age ancestors recognised its difference – its strangeness – and therefore its possible potency, so began using it as a spiritual focus? The construction of Stonehenge around it followed from this.
