You're misunderstanding my use of the phrase.

I'm using it in the context or immersing in something you have no understanding of. I just dove right into and skipped most of the intro type stuff.

You're using the phrase to talk about relative complexity / difficulty not how I've usually heard it used but it makes sense.

Like. Most people learning python start with hello world. I spent too many hours learning to own hot encode a 500gb dataset of reddit porn and tweak stylegan 3 a bit to train it on porn. None of which is remarkable objectively but there were a lot of very basic things I needed to learn to finish the task. That's what I mean by jumping in the deep end - throwing yourself into something you are probably poorly or il equipped for and just figuring it out as you go.

There is a deep end of coding complexity of course, but, different kind of deep end.