As my mind falls between asleep and awake my brain would start coming up with absurd thoughts as well. This would also happens when I'm too tired (think you haven't sleep for 24+ hours).
I sometimes speculate that your brain comes up with absure ideas all the time, and a "reality checker" would dismiss those ideas without you realising it when you're awake? Perhaps the absurd thoughts come out only when you're tired (checker running low energy) or falling asleep? May be some types of psychological dieases are due to this checker not working properly?
No doubt certain other, cough[0], influences inhibit that checker too. I wouldn't know though. : p In my case, I feel like I deliberately keep such checking off to diminish the profoundly powerful boredom of trying to drift off to sleep. You might as well try to keep yourself entertained before you dissolve into the void!
I sometimes speculate that your brain comes up with absure ideas all the time, and a "reality checker" would dismiss those ideas without you realising it when you're awake? Perhaps the absurd thoughts come out only when you're tired (checker running low energy) or falling asleep? May be some types of psychological dieases are due to this checker not working properly?