Presumably, "Goedel, Escher, Bach" by Douglas Hofstadter. Which, incidentally, doesn't have a particularly high "signal-to-noise ratio" but it's one of the mos

Presumably, "Goedel, Escher, Bach" by Douglas Hofstadter. Which, incidentally, doesn't have a particularly high "signal-to-noise ratio" but it's one of the most interesting books I've ever read.