[sanderjd]

Your first paragraph makes perfect sense! I was nodding along. But then your concluding sentence was a bit of a record scratch for me. This all worked as intended! You knew what the project was about - "data frames" - and what might make it attractive to you - the performance claims - and then you went and followed exactly the right path to get the context you needed to understand what's going on with it. It's a big topic that you were able to spin up on to a basic level in 2-3 hours, by pulling on strings starting at this landing page. This is a very successful outcome.

I'd also recommend this book: https://wesmckinney.com/book/. It's not about polars, but you'd be able to transfer its ideas to polars easily once you read it.