system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 How exactly is data transferred wirelessly? Bluetooth, Radio, Satellite, NFC, Wi-Fi, Li-Fi etc?
gpt
Imagine the hose in your garden. Its connected to a faucet. If you open and close it fast enough and in a pattern, water comes out of the other end also in a pattern.   
  
Now, devices have recievers and transmitters. These know how to "read" and "write" patterns respectively. We can now set this up so that certain patterns can mean certain symbols. A collection of symbols can ultimately form an email, a message on facebook, and more complex streams like pictures and videos.
  
in real life, these devices turn on and off at tremendous speeds, and as a general rule, the faster you can turn on and off, the more information you can send in a single time frame.