I know that there are categories, even auto-generated categories on YouTube, but they aren't that great or all encompassing. My biggest critique of present personalized ML content streams is that there's no two-way communication. I can't tell IG that yes I wanna see big booties right now, but no I don't want to see them five hours from now. Or I want to see aquaponics right now since I'm on a learning binge, but later tonight I don't need more technology and science, I just need to laugh and unwind.
Our actions, our content consumption, is not allowed to be one and done. Every move you make is seen as a signal to the algorithm that you want more of that all the time. The closest thing we have is incognito mode, or maintaining multiple accounts for different purposes. But why can't you look at an ex on instagram one time without them showing you that person everytime you open the app for 5 years. It's really toxic and unsustainable that all of your actions are seen as 'yes, please more of this all the time'.