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   What is

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   Consciousness ?

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   Does science have a satisfying answer?

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For more use the DOOR.

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   [MORE]

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   Not for most of us.

 

   Here’s how neuroscientist Dr. Rebecca Tan¹ describes it:

 What is consciousness?

   Consciousness is hard to define, but can be thought of as the difference between a digital photograph of a person (a bunch of pixels) and the memory of a person, which is recognised as something which has meaning and evokes a subjective experience. The problem with such a definition of consciousness is that it is impossible to objectively quantify and measure. Instead, scientists have used what they call neural correlates of consciousness, which refers to the minimal brain activity that is required for conscious thought. Even though correlates have been found, such as a region known as the claustrum, they bring us no closer to explaining what consciousness is.

Here’s what the online Oxford Dictionary says:

consciousness |ˈkänCHəsnəs|
noun
the state of being awake and aware of one’s surroundings: she failed to regain consciousness and died two days later.
the awareness or perception of something by a person: her acute consciousness of Mike’s presence.
the fact of awareness by the mind of itself and the world: consciousness emerges from the operations of the brain.

   A subjective awareness that we cannot explain objectively is about the best we can do. Further, the consciousness that humans experience is significantly more complex than that of any nonhuman creatures.

   When you’re dealing with a human brain the size of a softball with 90 billion (90,000,000,000) neurons (nerve cells) inside it that have 100 trillion (that’s 100,000,000,000,000) connections things get complicated… (Colors, boldface, and italics above are ours.)

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   ¹ http://www.scmp.com/lifestyle/health-beauty/article/1941658/9-unanswered-questions-about-human-brain