Have you encountered any use of the what3words app
About what3words | what3words is a really simple way to talk about location. People use what3words to find their tents at festivals, navigate to B&B’s, and to direct emergency services to the right place.
what3words.com
In the rescues.
I have heard it touted as a solution to map incompetence, but I have concerns it may encourage the incompetents further, particularly if they find themselves in a poor mobile phone reception area, their battery has become chilled or drained of power etc.
It looks to be an interesting back up but no more than that.