Why does all new pop music sound the same?

Why? Because most of what passes for talent today -- used to be considered trash; furthermore, many have so dropped their values and expectations . . . believing that if some publicity stunt or cleaver publicist gets a large number of people to follow such trash, then even those who find such atrocities offensive, will follow them because they don’t wish to be considered odd or out of fashion. Individuality and superlatives have been replaced by a singularity of thought and loss of thinking for oneself. The lyrics stink for the most part . . . and the so-called music all sounds like the same tired formula with slight variations of a beat, banging, foul words, and screeching harpies trying to reach high notes that sound more like sirens or whistles than they do human voices. Take away all the special effects, backup singers, and other noise assaults, the lead singer usually has a very mediocre voice at best, if at all, and after all the electronic modifications and changes. what the audience or listener gets is something that does not even resemble the original voice by which people are being entertained. The synthetically produced slop is not fit for human consumption.

Singers and musicians used to pay their dues -- not take pay under false pretenses; therefore, how quickly many “artists” are forgotten within a short time and never heard of again. No wonder so many young people are so tense and have a hard time relating to one another without their cell phones, computers, laptops, and noise blasting out the world around them. The mind doesn’t differentiate between that it is conditioned by -- when that is ALL it has ever been exposed to is a mindless, debilitating barrage of garbage and junk.

Amen !

Amen!  Requiem for a Nun seems like an appropriate term of WF for Top 30... ;-(

" In Finland the people speak Finnish ". That's incredibly insightful.
" the most musical of all languages ". Double insightful.
We got a genius here.
Schubert, Finland is not the most interesting country at all. Pardon me, but this is nonsense.

Getting back to the original question...  "Why does all new pop music sound the same?"
ANS:  If you restrict your effort to discover new music to boring pop-schlock on playlist radio and the muzak at K-Mart, it does mostly sound alike.  Worse, the bean-counters at the big music publishers and distributors have gotten it all down to a dystopian econometric algorithm of hooks and catch phrases.  If you listen a bit to promoted hits, most of them lack an actual discernible melody.  All they are is a string of hooks and psychometrically-validated snippets strung together to create the illusion of music.  Most devolve down to a sing-song cadence not far dissimilar to what 5 year-olds drone on the play-yard.  The more mainstream "popular" an artist is, the more and more indistinguishable is each successive "hit" promoted to mass sound (as distinct from music) outlets.  It is no longer "music" per se but "product", much the same that the corporate over-class foists upon the consuming public (visions of sheeple grazing at McDarnold's intrude at this point).  At another extreme of clone-ish music is most of what is electronically mass-produced for the dance club and rave scene, so dominated by what sounds like a single universal drum machine track.  But even here, there are pearls to be discovered.

Fortunately, there is still a surprisingly vast world of new music these past couple decades that has given birth to dozens of new concepts and genres.  "Pop" does not even begin to encompass the amazing range and variety of music available to the audiophile of today.  I offer the following as a tiny hit of "pop" tunes (broadly speaking) as pudding proof.  All are easily find-able on the Net...   in no order of preference ...
• Music is My Drug  by Techno Squirrels
• Calgary  by Bon Iver
• Devastator  by Catfish Haven
• Jerk It   by  Thunderheist
• Breathe  by Télépopmusik
• Sonne  by Rammstein (Russian-language version recommended)
• Each Time You Fall In Love  by Cigarettes After Sex
• Rise  by Samantha James (Sade meets Astrud Gilberto meets Basia with perfect diction)
• Look Like That  by Sneaks
• I Got It   by Marian Hill (Rolling Stone Sperry Session on YouTube)
• Schnitz!   by  Dorfmeister vs. Madrid De Los Austrias (LoungeMasters Music Video)
• Arabian   by  gusgus (KEXP Lively Session)
• John Lee Huber (Radio Edit)    by TOSCA
• Beautiful Things (DJ Tiesto Mix)    by Andain feat. DJ Tiesto
• Hey Now    by London Grammar (album vers. & KEXP live session on YouTube)
• Tricky Tricky (Salem's remix)    by  Röyksopp
• That's Not My Name   by  The Ting Ting's
• Sirens of the Sea    by  OceanLab (Above & Beyond)
• Stof    by Eefje de Visser (MV on YouTube)
• Crystalfilm (EP version)   by Little Dragon
• Crave You: Adventure Club Dubstep Remix   by  Flight Facilities feat. Giselle

Pop music sounds alike???  Surely this was a rhetorical question. 

'Nuff said.