zack maril -- zack: it will be difficult if not impossible for you to go out and crawl the way that googleoes. you might get a couple of webpages here and there but there are software engineers out there watching what you are doing if you are crawling their websites. because it is expensive. if you are crawling too much or crawling too fast and you are not google, you will get blocked. there will be a firewall. caroline: why does it matter for me? why should it matter that there is one player who is so efficient at search? zack: i think it utters for you because what google has is this moat around the google search. because of this, this natural monopoly on web crawling, it is allowed to reap all of these profits from the ads that it sells on search results. with those profits, it is able to expand into other markets and kind of be not so great. an example i will give is the stadium project. a video game thing that they tried and just continue to fail at. i don't think another company could get away with that. but when they came into that market, it kind of took out the air from the room.