Finished Rucker's
White Light. It could be savaged as an almost plotless dream about nonsense or loved as a brilliant and funny experience with many mind-expanding moments. I'm somewhere between, but definitely on the positive side.
John Shirley does the foreword and accurately summarizes the pros and possible cons and references PKD. Rucker does the afterword and references PKD again, along with Kafka and Watson. None of these references surprise me. I like the original Ace blurb: "Albert Einstein! Georg Cantor! David Hilbert! Donald Duck! The Secrets of the Universe Revealed!" (It kinda blows my mind that Jim Baen originally published this though he was more eclectic than he's sometimes credited for.)
A couple of examples of concepts and humor (though, in places, it's quite dark and serious):
A description of Hilbert's Hotel (pp.81-2):
Although the hotel was only two hundred feet high, it had infinitely many floors. The trick was that the upper floors got thinner and thinner. Each successive layer of rooms was flattened enough to use only one twentieth of the remaining hotel height...so there was always room for nineteen more floors.... I stared up at one of the slit-like upper windows and wondered how anyone could use a room with an inch-high ceiling...let alone a room that an electron would have to stoop to enter.
The protagonist's sometime travelling companion, an alien who looks like a giant cockroach and sometimes has an interesting take on English (p.158):
To be human is to be erroneous.
Also, there's a line in here which bugs me (so to speak) as it reminds me of something, but I can't place it - maybe some fable like the lion with the thorn in his paw or something? Does anyone recognize this? (The 'him' being Franx, the alien cockroach (aka Gregor Franz)).
(p.84):
Someone..."some benighted xenophobe"...had thrown an apple at him. It had stuck in his back and begun to rot.
Anyway - a very wild, interesting, good book.