In a recent post, Jane Setter wrote about the possible future loss of the dental fricatives (/θ, ð/) from English, in favour of /f,v/. I also wrote not so long ago about the confusion between these two pairs of fricatives here. I’ve since heard another hypercorrection: “sheathes of corn”.
This tendency to hypercorrection could be another indication that the dental fricatives will disappear: people who are certain of the ‘correctness’ of their pronunciation will have no problem distinguishing these sounds and putting them in the traditional places correctly. Am I right in thinking that it is only when uncertainty creeps in that a fear of getting it ‘wrong’ will lead to overcorrection? As this uncertainty spreads, will it not lead first to the two pairs of sounds becoming merely free variants, and then to the one which is supposedly more difficult to articulate disappearing altogether?
I am being very tentative, as predictions for the future course of language development are always no more than guesses.