system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why Do a Lot of Small Files Take Longer to Copy Then One Big One?
gpt
It's like the difference between sending one envelope containing a 100-page manuscript vs. sending a hundred envelopes containing a page of the manuscript each.

The resulting manuscript is the same size in each option, but with the second option the receiver has to spend time opening a hundred envelopes.