This has been submitted many, many times. The most significant discussion I could find is here:<p><a href="https://news.ycombinator.com/item?id=8614198" rel="nofollow">https://news.ycombinator.com/item?id=8614198</a><p>Here's a search showing previous mentions:<p><a href="https://hn.algolia.com/?query=what3words.com&sort=byDate&prefix&page=0&dateRange=all&type=all" rel="nofollow">https://hn.algolia.com/?query=what3words.com&sort=byDate&pre...</a>