". . . The last days are marked by hallucinations: bears, wolves and aliens prowl the roadside; asphalt cracks rearrange themselves into coded messages. Occasionally, Robic leaps from his bike to square off with shadowy figures that turn out to be mailboxes. In a 2004 race, he turned to see himself pursued by a howling band of black-bearded men on horseback . . ."
I normally hallucinate during 24HCD, although not as vividly as this guy. My episode usually starts around hour 20 and involves seeing little black bugs on the periphery of my vision. They don't actually look like insects, just blurry black moving things that my brain interprets as bugs. And of course, as soon as I try to focus on them they disappear.
If anyone else has a 24HCD hallucination story, please leave it in the comments!
Link to the Mind Hacks post
Link to the original NYT article