A recent discussion led to thoughts of knowledge and the various kinds of knowledge, in particular with respect to “the psychedelic experience”. You can know what a psychedelic experience is, but until you have the experience yourself, you can’t know what it is like.
To illustrate this point, the philosopher Thomas Nagel once asked “What is it like to be a bat?” Or to phrase it more precisely, “What is it like for bats to sense objects by echo-location?” These are questions we cannot answer – we’ll never know what it is like to be a bat.
We can study bat physiology, echo-location, bat neurology, bat behavior, etc. We can learn about what bat echo-location is, but we will never know what it is like – what echo-location is like for a bat.
A person blind from birth can easily learn about the color red. He can learn that light is a form of electromagnetic radiation, and that different frequencies of this radiation correspond to different colors, and that we call a particular frequency range “red”. He can learn about the rods and cones in the retina and the role they play in sensing light and color. He can learn about the visual cortex and how it translates this sense data into the sense impression “red”.
But this blind person will never know what it is like to see the color red.
Words don’t adequately describe the subjective DMT experience. Words can tell us something about what the DMT experience is. But they really tell us nothing about the subjective experience – what it feels like to be altered by DMT – what the experience is like.
Comments?
To illustrate this point, the philosopher Thomas Nagel once asked “What is it like to be a bat?” Or to phrase it more precisely, “What is it like for bats to sense objects by echo-location?” These are questions we cannot answer – we’ll never know what it is like to be a bat.
We can study bat physiology, echo-location, bat neurology, bat behavior, etc. We can learn about what bat echo-location is, but we will never know what it is like – what echo-location is like for a bat.
A person blind from birth can easily learn about the color red. He can learn that light is a form of electromagnetic radiation, and that different frequencies of this radiation correspond to different colors, and that we call a particular frequency range “red”. He can learn about the rods and cones in the retina and the role they play in sensing light and color. He can learn about the visual cortex and how it translates this sense data into the sense impression “red”.
But this blind person will never know what it is like to see the color red.
Words don’t adequately describe the subjective DMT experience. Words can tell us something about what the DMT experience is. But they really tell us nothing about the subjective experience – what it feels like to be altered by DMT – what the experience is like.
Comments?

), how would you know it was that state and the experience of it?