https://www.wsj.com/articles/google-amazon-meta-and-microsoft-weave-a-fiber-optic-web-of-power-11642222824

Imagine trying to compete with a new cloud patform (like Digital Ocean does?):

The ability of these companies to vertically integrate all the way down to the level of the physical infrastructure of the internet itself reduces their cost for delivering everything from Google Search and Facebook’s social networking services to Amazon and Microsoft’s cloud services. It also widens the moat between themselves and any potential competitors.