Everything We Don't Know

A video on YouTube. In Self-Improvement, a Krater category.

Summary by Krater

A philosophical reflection on human perception, science, history, and the vast unknowns of the universe, concluding that humanity knows very little about reality.

From the video

Answers: What do we actually know about human existence and the universe?

Human perception and color
Ocean exploration and coastlines
Inventions and human history
Animal tool use and communication
Consciousness and the placebo effect
Cosmology and the scale of the universe

What it concludes

There is no way to know that what one person sees as a color is the same as what another person sees.
Non-human animals possess neurological substrates that generate consciousness.
Most of what we currently think we know about the world may be wrong.

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Titles and thumbnails from YouTube. Krater isn't affiliated with, endorsed by or sponsored by YouTube or Google.