First, that's a feature, not a product.

Second, there's no barrier to entry there. Facebook's ~10000 engineers can recreate features with amazing swiftness, do it better than the first movers, then spread the feature quickly through its 1 billion+ user social network. If Facebook wants to beat snapchat at the AR game, they will do it when they feel like it.

https://techcrunch.com/2017/04/13/instagram-stories-bigger-t...