That is why a program that compresses data to enable faster transmission and decompresses received data exist : codec
So it doesnt need the raw bandwidth you suggest
You literally need like 25Mbs to smoothly stream a 4k30fps video on "YOUTUBE". I know this for a fact cause my internet peaks at 30Mbs. The second I pick a 4k60fps video I start buffering and dropping frames while maxing out my connection speed. And this is pretty simple, if it takes 25Mbs to stream 4k at 30fps, going to 60fps is literally you doubling the data you are receiving in each second.
So pls next time do a little research before you try and come at someone and sound smart and condescending.
That "codec" you talkabout is the only reason we're even getting bit rates as "low" as 50Mbs. If this was native 4K (UHD disc) it should be around 128Mb/s.