First of all, ZeroHedge is an awful place to start to have an unbiased discussion if you want to get to the truth of the matter. Not sure if you're a climate change denier, stand@desk, but you know Patrick Moore is one right? ZH uses "Dr." Moore (PhD in Forestry) as an "expert" on any climate issue because although he co-founded Greenpeace he is now aligned with conservative views on climate change denial. This is a good use of authority bias by ZH, because the uninformed will think that this guy is one of the top experts since he co-founded Greenpeace and has the title of doctor, but he's not a climate scientist and actively goes against what the science says! In the future, it would be more helpful to begin a discussion like this by citing a more reputable publication.
Anyway, observing AOC over the past year or so, It seems to me that she is clearly able to learn at a fast pace. Before she was elected, I was cringing at the inaccuracy of some of her arguments. However when she was criticized and corrected, she did not respond with denials that she ever said those things, cries of fake news, etc. She course corrected.
One of Cohen's claims at his hearing was that Trump fraudulently valued his assets higher or lower depending on the circumstances. Others questioned Trump inflating his net worth but the whole time I was thinking, is anyone going to ask about him deflating the value of his assets? Finally AOC comes in with that line of questioning at the end, opening up a new line of investigation into Trump's alleged insurance fraud. Maybe he'll even be able to fulfill his promise of showing us his tax returns! AOC was the one of the few congresspeople that was able to gather information beyond what Cohen already stated in the first half hour.
By default I would expect any 29 year old "new hire" with no relevant experience to be awful at their job, no matter what the profession. The relevant thing to look for is the capacity to learn. When Trump was elected, many (including myself) wanted to give him a chance because although he has no relevant experience, he could at least learn how to be a capable president. But he's in his 70's and thinks he knows everything without listening to anyone, so that did not go so well. AOC on the other hand appears to be capable of learning!
As for the Green New Deal, it makes sense to try for something that seems extreme even if you don't believe it has a chance of passing, and not just for personal political reasons. An extreme proposal has the anchoring effect, so any subsequent proposals that may have been seen as too extreme in the past would now seem more realistic. Having it written out as a full bill also gets the discussion going more broadly compared to it being a talking point during a campaign that may not have had much coverage. Now we have a debate of Green New Deal vs. No Green New Deal where there was no such debate before. We might eventually end up compromising on some "Half of a Green New Deal" that has some investments into more efficient energy and infrastructure improvements with good ROI but without the extreme parts that could bankrupt us. Only 3 - 7% of proposed Congressional bills and resolutions become laws. The other >90% aren't completely wasted time; they can be beneficial to political evolution even if they get killed immediately.