I think all almost industries cluster in the sense they are talking about in the article. The corporations responsible for creating and distributing are cluster

I think all almost industries cluster in the sense they are talking about in the article. The corporations responsible for creating and distributing are clustered. For instance, Oil and Gas in Houston, Pharma in New Jersey and so on. I don't think the economic value of clustering will stop anytime soon. The trend may stop because people find better solutions to housing than simply building more of the same. (And software should not be thought of as an industry, but a tool that enables other industries, but this is not the place for that.)