How to Build a Universe That Doesn't Fall Apart Two Days Later, Philip K. Dick
If you liked this, I highly recommend reading his book VALIS. It&#x27;s psuedo autobiographical, and deals with the odd &quot;visions&quot; and &quot;revelations&quot; PKD experienced later in his life. He was likely suffering from some sort of mental illness, but to close the discussion there ignores the lessons PKD himself taught us in his earlier works. Reality is weird and slippery, and we don&#x27;t really know what&#x27;s going on.