system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why does the radio sound so redundant now when it feels like 10 years ago it was playing much more music?

Like for instance why am I hearing only like 20-30 songs for literally weeks at a time? There's TONNES of new songs and artists out there why is it so limited?
gpt
because you're 10 years older and just realizing how it's almost always been...radio as a business exists to sell commercials, they (the owners) don't care about the music (the djs might but they don't decide what's played). in general, research shows that the average listener only listens for about 15 minutes consecutively, so in order to get the average listener to stick around for those commercials, they need to guarantee that the average listener will hear as many of their favorite songs as possible in that 15 minute window. this means that the top 20 songs must be repeated as often as possible, especially during "drive times" such as on the way to and from work.