Law,Medical just about everything.
So If I had a heart attack/coughing up blood-- would I just diagnose myself on the net?
So If Id saved $200k and wanted to invest in the markets would you recommend I learn to do so over the net?
Interesting Tech/A, makes one think.
I think in a lot of areas you have to think whether an area can have an 'expert'.
With law, which is bound by precedents and written 'law', one perhaps can be an expert.
Medicine on the other hand, which has developed through discovery, I am not sure what an expert is. As with my recent experience , you go to 5 different doctors, and get 5 different opinions. Unless you have a knife sticking in your back, or something obvious, doctors read your symptoms, then try to compute it within their knowledge based system, which is their head of likely things they were taught or learnt. Try this ... nope, try this ... nope, it is like watching an episode of House.
Reading of charts, is a different kettle of fish I believe, as one thing about markets is that it captures human emotions, which often repeat - like a fight or flight response, or greed and fear, or need to get on board too (momentum). There is so much written in books, and now on the internet, that deciding between the two, is perhaps the same depending on the 'experts' choice of delivery. I think your comment was more directed at finding an 'expert' though.