One way to process this list is to see it as an elitist construct intended to put you down or degrade you or extract money from you for training etc.(which might even be true, but generally it is better, ime, to assume that people are genuinely trying to provide what they see as value)
The other is to ignore any insult, intended, perceived, or a mix of both, ignore all the hierarchy labeling - 'beginner', 'advanced beginner', "standard ladder" etc who tf cares? - and just see if there are skills you can pick up or explore on your own.
That said, I laughed at 'equational reasoning' being considered an 'expert skill'. It is considered an advanced technique but imo the basics are trivial to pick up, and I had a lecture/demo on this at a local fp conf. Sure it can get very hard if you tackle a hard problem, but that is true for everything.
The other is to ignore any insult, intended, perceived, or a mix of both, ignore all the hierarchy labeling - 'beginner', 'advanced beginner', "standard ladder" etc who tf cares? - and just see if there are skills you can pick up or explore on your own.
That said, I laughed at 'equational reasoning' being considered an 'expert skill'. It is considered an advanced technique but imo the basics are trivial to pick up, and I had a lecture/demo on this at a local fp conf. Sure it can get very hard if you tackle a hard problem, but that is true for everything.