Godel, Escher, Bach Online

visualized it in lithographs like Waterfall , where water appears to flow uphill only to feed its own source.

achieved this through "endlessly rising" canons that modulate through keys until they return to the original tonic, seemingly higher but fundamentally the same. Godel, Escher, Bach

At the heart of GEB is the idea of a "Strange Loop"—a hierarchical system where moving through the levels unexpectedly brings you back to the starting point. visualized it in lithographs like Waterfall , where