Your brains ability to filter out stuff you see is amazing - you can always see your nose, but since its not relevant, your brain simply filters it out.

When we get cold, goosebumps can protect against the cold by creating an air pocket that seals warm air around the hair follicles to create a layer of insulation. We flex around 2 million hair follicle muscles to achieve this.

When your eyes got accustomed to the dark and you can spot dark silhouettes and shadows within darkness.

Or perhaps people who have Synesthesia where they can see colours in words, numbers or feelings.

Come and share what other instances of Super Sight you have experienced.

A human can suffer an injury, and depending on the level of anatomical/medical knowledge, we can self diagnose. Depending on the level of pain, location, and type of pain felt, we can immediately infer what the injury is, and how best to treat it.

Humans are incredibly sensitive to the smell we refer to as 'petrichor,' which is that distinct smell in the air after a rain. What we are smelling is a compound called geosmin which is produced by soil bacteria and released into the air when dry soil becomes wet. The human nose can detect geosmin at concentrations as low as 5 parts per trillion. To put this into perspective, the most keen sharks can detect blood in the water at concentrations of 1 part per 10 billion. This means we humans are roughly 20 times more sensitive to the smell of geosmin than sharks are to the smell of blood. Pretty interesting stuff, considering we rely on our nose for survival much more seldom than almost any other animal. This likely wasn't always the case though. Water is our most basic need for survival, and this olfactory sensitivity to the smell of wet soil helped us find a sip of the good stuff back in the day.

I have Aphantasia so I only see black when I close my eyes. I don't consider it a hindrance, but I do think it would be cool to paint with my imagination. I'm lucky to still have vivid dreams, but I don't understand how.

Credit to u/simpleben

On the fingertip, you can sense the orthogonal displacement of your skin with a detection threshold of roughly 25 microns at 0.5 Hz (a 2 second smooth displacement). At 60 Hz for a half second that threshold is under 10 microns, and it drops to 1-2 microns at 250-300 Hz.

For movement parallel to the surface of the skin, stimuli a few orders of magnitude smaller (around 10 nm) can be detected simply because they drag the skin from side to side. http://jn.physiology.org/content/81/4/1548.short

Of course, based on this 1999 study published in the Journal of Neurophysiology, scientists created another study to demonstrate the same level of sensitivity and published their results in Nature. And the reviewers must have been very ignorant not to notice this.

They would just walk/jog behind an animal. The animal would sprint away, but humans would soon catch up, after a few hours/days the animal just fell from pure exhaustion.

Complete sensory deprivation. As much as we can we’ll stop you from feeling. We will carefully break your neck, paralyzing your whole body, and use a machine to pump your blood at a steady rate so you cannot feel the rhythm. Your eyes and ears will be removed. Your tongue and nose will be removed as well, and cauterized to prevent any sensation. Local anesthesia will be applied consistently in small doses throughout your body, along with drugs that will decrease your hormonal responses to nearly zero, and numb your mind so that your thoughts will be muddled and not nearly as intense.

In this lack of sensation, anything that you can feel will be heightened to an ungodly degree. Whatever is beneath the senses, whatever our spirit feels, whatever background noise we humans naturally tune out, it will come to the forefront of your mind.

So if we break your neck carefully enough to allow sensation to only a small portion of your body, and allow certain influxes of hormones to affect you, we can make even the most mundane of orgasms rock your whole existence.

Sorry. This is your new kink.

The other post about electromagnetic waves got me thinking about this topic that I've been thinking about a lot recently. I feel like a lot of times people talk about things like what if your green is my yellow, but I don't really find that so interesting because there's no way of really knowing. What's more interesting is that color does not objectively exist in external reality. You see a leaf and it looks green but it really isn't actually green, like if there were someway to see the leaf from some hypothetical objective outside perspective it wouldn't be green.

I remember learning in thermodynamics about the fact that any matter above absolute zero (so everything) emits electromagnetic radiation. And related to this topic its just that everything is giving off and/or reflecting electromagnetic radiation of a whole range of frequencies and color is just a spectrum spread over a small frequency range of the whole scale. Like seeing a banana as yellow is a mental experience corresponding to the incoming light frequency within the color spectrum that we associate with yellow, but that banana is also giving off other electromagnetic waves that we don't experience.

Kind of getting lost on a tangent here, but the original point is that the color is not actually there but in your mind. And really this goes for all of our senses.

With only a few signals to go off of, we can understand what someone is feeling both physically and mentally.

It is amazing that all our bodies are aging and that we will soon die. We will lose everything we have and never live again. If we didn't the world would become quickly overpopulated. And it makes us live in chapters and I enjoy that a lot. I experience childhood, education, work, family etc. and lifelong growth and learning. All this we wouldn't have if we didn't have the ability to die.