Do you still remember the six degrees of separation theory that I mentioned in this article before? If you don't, let's review it briefly: The six degrees of separation theory is also called the small world phenomenon or Kevin Bacon six degrees theory. Its general meaning is that you can establish a relationship with any person in the world by going through no more than six people. This theory is also a major subject of study for social networks, at least that's what I think.
If you still do not fully understand the six degrees of separation theory, then the online tool "Six Degrees of Wikipedia" will tell you very intuitively. Due to the fact that each Wikipedia article has countless internal links and external links, this tool is used to query the shortest connection between different entries, that is, the number of links a user needs to click to go from entry A to entry B. For example, I can link from "Earthquake" to "Internet" with only two clicks, and the intermediate "messenger" turns out to be the "Iran" entry. Interesting, right? Of course, this is thanks to the huge number of links and content on Wikipedia. However, this tool only supports English search and does not support other languages.