Yea, more depressing than anything, in the sense that it confirms that Spotify relies very heavily on preferences of other users and creates filter bubbles like Youtube.

It's a vastly inferior method to Pandora's song analysis method IMO. I'd definitely use Spotify more if it had that, maybe significantly more - I can use it for 6 hours on a given day but then I often give it breaks because I'm on a discovery rut.

Maybe that's just me, and they know on very certain statistical terms that for most users that's not the case and music filter bubbles work much better.

Or maybe they're completely wrong in their approach and they're making a massive mistake at scale. We've come to develop this bias that tech giants "must know what they're doing" but I think it's often not the case. In ten years we could be reading how a competing service took over by offering the same catalogue with much better recommendation tech or other bells and whistles layered on top.