system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why don't wireless signals, like text messages, hit in midair and mess each other up?
gpt
They can.  Which is why the frequencies that wireless signals run out are heavily regulated so that signals don't interfere with each other.  You know the numbers for the radio stations (e.g. 98.5) that tells you which frequency it is running at.  In the US the FCC will determine who physically close two radio stations with the same frequency can be to each other so they don't interfere.  Things like your home wifi work the same way, except they have a couple of different frequencies they can run on (which they call channels).  When you first turn yours on it will scan for other nearby wifi and choose a channel no one else is using.  Because wifi is so low powered (compared to a radio tower that can project a signal many miles) you can have a lot more of them in a smaller space.