system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do livestreams take 15-30 seconds from being sent to being seen, but videogames can send complex movements of many players near instantaneously?
gpt
Because video games are being rendered on your local machine. The World of Warcraft servers aren't sending frames to your computer, they're sending "player "loldude" x=2563 y=4403 NPC "person mcPersonson" x=2582 y=4430 ...", and your computer uses that information to inform how it builds the screen that gets shown to you.  

When you're streaming, then you are actually sending frames over the internet. You need to send the color data for every single pixel on the screen, as well as the audio that goes with it.