system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 Why do FM radio stations sound clear but AM radio stations seem fuzzy?

AM radio stations seem to always have a fuzzy, unclear reception but FM radio doesn’t seem to have that issue.
gpt
AM radio is like communicating by changing the brightness of a light. Lots of things can block the light making it seem dimmer than expected.

FM radio is like communicating by changing the color of a light. Many things block the light making it dimmer, but few things can change its color easily.