I love her style. She knows a lot, but is VERY open to being wrong or not knowing things fully. That is to say, she's happy to say something that might not be 100% correct but is the way she understands it, or to admit she only knows 10% of this one thing. There's utterly zero arrogance but also there's not really a lack of confidence. It's almost a childlike wonder/excitement about things. In using that approach, it makes the reader appreciate the subject as well, feel happy about the things they know in common with Julia, feel happy about the things the reader knows that she doesn't know YET, and also feel comfortable that "hey, here's somebody else who ALSO doesn't understand this topic that well!" In every way, it's the exact opposite of imposter syndrome, both for the writer and for the reader.

I think too many of us (at least, based on my own experience) don't feel like we know enough to share with people. You both don't realize what you know that others don't, but are also anxious about being wrong or presenting yourself as an expert when you are not, for fear of ridicule or judgement or whatever.

She's such a great asset to the community.