What do you want from me? Those algorithms are proprietary. A few select people in the world know what exactly they’re doing and which data gets stored how in the databases. We can make assumptions by their behaviour. From time to time something gets leaked and we learn some details. We used to learn how the google pagerank algorithm works in university. Now google suggests me what to read and i just swallow that. And you keep making apologies and deny you can be / are being manipulated…?! or harm you ‘reliably’?