Already discussed at https://news.ycombinator.com/item?id=12060954 https://news.ycombinator.com/item?id=12060954 ... Some commenters had more info on the engine

Already discussed at https://news.ycombinator.com/item?id=12060954 https://news.ycombinator.com/item?id=12060954 ... Some commenters had more info on the engine on this thread.