It's useful to look at examples, in part, because of the way the industry has evolved. First with operational efficiency companies, and then secondly, especially more recently, with disruptors. We start it by looking at Zillow and WeWork. We could also have looked at Trulia, or Loopnet, or others, or WeWork and its competitors. Let's take a look at a couple of those, first, focusing on the residential real estate sector. The residential sector has long maintained a pricing system and data availability industrially. The MLS services or Multiple Listing Services has been in place for decades and has been run by local affiliates of NAR, the National Association of Realtors. It's a trade organization without access to so-called MLS data. Historically, it's been a challenge to do important exercises like creating comparables. Or, ultimately, shopping for purchases, or understanding what market trends are, for those who are selling their properties. Realtors, historically, have had what is, in essence, special access. Which has been addressed by some of the players we've mentioned already. Today, the Multiple Listing Services is still owned at least in part by the NAR, but there has been pressure. And, of course, the advent of business models like we've mentioned Zillow, and Trulia, and Loopnet and Redfin. Such that the MLS data has been made available, it's been democratized. The aggregators have had access to now bring their business models out to both consumers and those intermediaries who serve them, in accessing, selling, and buying real estate. Where we might have expected disruption to see its greatest influence. Say, in the historical commission structure in real estate, both residential and commercial, in some areas known as the 6% rule. There's a 6% commission on some real estate, split by buyer and seller brokers, that's been fairly resistant to change. That having been said, again, coming back to the model of operational efficiency and/or disruption. Technology is now making it easier to disintermediate those spread takers, or those who would compete on price. It's been possible, although it's been very challenging without a broker, to be involved in the real estate market. And many, many people do that every year without paying a commission. But it's been a challenge, in part, because of the barrier to entry in areas like pricing, and knowing what's going on in a given market. In part, that's because residential real estate transactions require a host of Agilent activities. Including inspections, title services, evaluations, appraisals and so on. And that's been generally challenging without those intermediaries.