We may not be sensing the whole thing

Traditionally, humans are said to have five senses:

1. Sight (vision)
2. Hearing (audition)
3. Smell (olfaction)
4. Taste (gustation)
5. Touch (somatosensation)

But modern neuroscience says humans actually have many more sensory systems.

Some important additional senses include:

• Balance (equilibrioception) — sensed by the inner ear; helps you stay upright.
• Body position (proprioception) — lets you know where your arms and legs are even with eyes closed.
• Temperature (thermoception) — sensing hot and cold.
• Pain (nociception) — detecting injury or danger.
• Internal body state (interoception) — hunger, thirst, heartbeat, breathing, fullness, etc.
• Acceleration and movement — detecting motion and orientation.

For example, if you close your eyes and touch your nose accurately, that’s proprioception at work.

Some scientists debate the exact count, but depending on how finely you classify them, humans may have 10–20 or more distinct senses.

And even then, humans perceive only a tiny fraction of reality compared with what might physically exist:

• limited light frequencies,
• limited sound frequencies,
• limited chemical detection,
• no natural magnetic sensing like some animals.

So our experience of the world is not reality in totality — it is reality filtered through human biology.