[notahacker]

There's a lot of bits that don't make very much sense. Hypotheticals involving people don't have a phone signal and can't be sent the app by emergency services but they can still convey a what3words message to them (using what? semaphore?) People don't already have a GPS enabled app on their phone?

Relevant PG article that always gets brought up here when an article which is obviously a PR effort gets posted here http://www.paulgraham.com/submarine.html