I have just completed a course on computability and logic which was an interesting course. The lecturer recommend a few books on his slides, which include Gdel, Escher, Bach. I can see the book is quite famous, and looks very interesting. But I have a few questions to ask regarding its content.Is the content still valid today? I guess most theoretical stuff doesn't change over night, but are there any major points which no longer hold today that I should be aware of?I assume we actually HAVE made some progress in the last 30 years or so. Can any of you recommend a book on the subject which includes this progress (logic, AI, computability)?Another question: Do I have to know about Escher and Bach?
Gdel, Escher, Bach still valid today?
learning;books;computer science;artificial intelligence
Is the content still valid today? I guess most theoretical stuff don't change over night, but is there some major points which does not hold today which I should be aware of?The content is logic and math.  It doesn't change in any substantial way, not only over night.  It will be valid forever.