system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What physically ARE radio waves and what keeps different frequencies from interfering with one another?
gpt
Radio waves are light. You can see many different colors of light, right? That's because light comes in a lot of different categories called *frequencies* which correspond to their colors.

Now, there's a lot of light out there you can't see with your eyes! BUT, a radio receiver can still "see" this light. Just like you can see that a red flower is red even if it's really bright outside, radio receivers can see the color (frequency) of the light they're receiving even with some background noise!

If you were looking exclusively for a pattern of blue text, you would be able to see it even on a page full of pink text, right? Radio waves are the same thing.