Is database a representation?

Despite all this, we believe we have a reasonable representation of the actual link structure of publicly accessible web.

from “The PageRank citation ranking: Bringing order to the Web” p.7

The cached database of contemporary web reflects the temporal state of internet.
So, search engine that shows us the search results works as a gravitational lens in the relativity theory.
Cause the search engine, especially Google server which is crawling the entire web-pages in the world, distort the topological aspect of internet.
With the method of caching and crawling, search engine makes the representation of WWW in itself.
And search engine shows the distorted reality of the real internet, though we do not know the real WWW, the internet.
Whether the search engine is the concave mirror or the gravitational lens, the point is that the results from the search engine is not the reflection but the representation.

inspired by L. Page, S. Brin, R. Motwani, T. Winograd, “The PageRank citation ranking: Bringing order to the Web,” submitted for publication. http://citeseer.ist.psu.edu/page98pagerank.html