Why Is Modern Pop Music So Terrible?

Here's an interesting video I came across while browsing through YouTube this morning. Do you think modern pop music is terrible or is it a matter of changing personal tastes. This video from the channel Thoughty2 attempts to scientifically explain the decline in the quality of popular music in the past 40 years. I think the commentator makes some very interesting points. What do you think?

I'm preparing a new series of concerts for my supporters on Patreon (my patrons). These concerts will be live streamed and I'll be able to acknowledge and communicate with you all in real time. I'll also be including a lot of background stories and advice pertaining to music. 

If you want to participate in these live steams please click the Become a Patron button above. I'm almost my goal necessary to begin start producing the concerts. So I would greatly appreciate a small pledge of $5 from you. Thanks!