Lifi
A new piece of technology which allows internet connection to be transferred using light rather than radio waves, it is alot safer as it will not go through walls and so people who arent inside the house/place you are in cannot use it, the lights can be dimmed so much that the human eye cannot see it while still providing internet connection more stable and faster than wifi.
Derick "why cant i get on your wifi?"
Bob "we have lifi, you need to be inside, and not looking through my window"
Bob "we have lifi, you need to be inside, and not looking through my window"
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