[sili]

If it finds a loop, can't it go and explore other paths?

[sophacles]

Please spend 38.9 seconds trying to understand the very very very simple algorithm that says: Follow the first link that... It doesn't say there are alternate choices. If you went with a different link than the first, it would no longer be the first.

[Someone]

Well, it is Wikipedia. The program _could_ go to Wikipedia, edit a page in the loop, save, and continue :-)