Wow, respect - I can not compare algorithms, I am not on TikTok or on Insta. Also not on Spotify. YouTube is actually my only home for consuming content in masses ... and amazon, because of some exclusives...
Youtube knows me quite well, if you counted all the man hours that went into me feeding that machine while searching for obscure music videos and whatnot, you'd be a pretty rich man...
... it would be cool if that history or "key of preferences" was interchangeable between platforms, I must say ... then I don't have to wade through loads of crap when going on a non-native platform...
...but what am I saying. That would be the total surveillance of internet activity, wouldn't it - and I am not a fan of that, actually. Plus it makes people quite vulnerable to manipulation, doesn't it?
...preaching to drink water and drinking wine doesn't go well together, eh?
However, blockchain could help that the data at least is not tampered with while being openly accessible ... that would be okay as long as the match between key and human behind is not feasible, because that would not be to my liking. Just imagine my boss or an institution asking me about this track "Sludgy Heads found in a Handbag" by Megaptera that I listened to AGES ago ... "strange fascinations or violent tencdencies much?"