[mhh__]

So how do browser caches work then?

[hnisoss]

Same as the cart in the store. If you take it out of the cart and save it in the home folder, well. If you put a web server on the home folder (or cache folder), well well well...

[wraptile]

What if I don't and just access the cache whether I want directly? What if I take a cached picture and print it and put it on my wall?

The bit copyright idea is so flawed it almost feels satire.