Guess in the remote event that you're told to learn a new skill that you don't know anything about, you go to pola.rs website and see "DataFrames for the new era" and start getting documentation from there, about what DataFrame is, the website is clearly showing what is it, it's your duty to understand what is it, I would argue that if you knew what DataFrames are you would be saying "Why is it saying something so basic and don't just show me the good stuff?"

I for example hate website that try to serve newbies, newbies have a lot of content if they are interested, it's not that all the web needs to serve them