system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: how they manage to provide reliable high speed wifi to 80k people at the Ethiad Stadium (home of Man City)?
gpt
A very large number of access points with narrow  beamwidths (each access point covers only a small slice of the total area) with careful ordering of the available wifi frequencies to limit interference.

Think of it like waitresses - each is assigned a small part of the restaurant so you can just hire more waitresses as needed instead of having just one waitress for everyone.