IV any traces of another Californian?

[umberto rossi]

I blush to confess that, though I have received IV weeks ago, I'm still 
busy reading Against the Day (well, I passed page 1000 today so the 
destination is almost reached), but since here everybody seem to be 
deep into IV--which is to be expected, after all, I'd like to ask you if 
anyone has spotted any hint at that increasingly famous Californian 
writer that Pynchon must have read while writing GR (and Vineland, I 
suspect), that is Philip Kindred Dick.
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umberto rossi