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with some other part of the system in another way, so I for one am happy to count video cameras, rocks, atoms and molecules in the air as quantum mechanical observers for all intents and purposes."
originally posted by: TheConstruKctionofLight
a reply to: Arbitrageur
with some other part of the system in another way, so I for one am happy to count video cameras, rocks, atoms and molecules in the air as quantum mechanical observers for all intents and purposes."
Of course he and you would. Jump hoops and go kicking and screaming if someone implies otherwise. And yet the above is the length that "scientists" would stretch the English language to in order to sanitize.
"Quantum mechanical observers"!
So an observer can be an electron, measuring apparatus, dog or conscious human. Here's Max Tegmark talking about the Physics of the observer.
So you have what I call weak observers and strong observers. A weak observer would be a measuring apparatus. It extracts information about a system ...
Human consciousness doesn't just extract information, it can give meaning and do work with that information to build things or write books.
The universe has to have knowledge of itself and knowledge is consciousness.
If knowledge wasn't fundamental, then how would anything exist? The universe would just be a superposition of states if an observer couldn't gain knowledge about a system.
At the time of this writing, the fastest supercomputer in the world is the Tianhe-2 in Guangzhou, China, and has a maximum processing speed of 54.902 petaFLOPS. A petaFLOP is a quadrillion (one thousand trillion) floating point calculations per second. That’s a huge amount of calculations, and yet, that doesn’t even come close to the processing speed of the human brain.
In contrast, our miraculous brains operate on the next order higher. Although it is impossible to precisely calculate, it is postulated that the human brain operates at 1 exaFLOP, which is equivalent to a billion billion calculations per second.
In 2014, some clever researchers in Japan tried to match the processing power in one second from one percent of the brain. That doesn’t sound like very much, and yet it took the 4th fastest supercomputer in the world (the K Computer) 40 minutes to crunch the calculations for a single second of brain activity!
So humans are observers but we can do so much more. We can take in information about a system and give that information meaning and use that information to do work.
What does this have to do with the price of tea in China?
You then said it can do work WITHOUT ANY HUMAN INPUT WHATSOEVER. Besides the fact that it was a human who built it LOL.
So humans are observers but we can do so much more. We can take in information about a system and give that information meaning and use that information to do work.
For instance, a dog is an observer and a dog may extract information that the moon moves like it's chew toy or when a ball is thrown.
Human observers can extract information like the distance of the moon from the earth or from the sun, build rockets to visit the moon, write books about the moon, explain why we see a blue moon or half moon and much more.
Initial evidence is found that the brain has a ‘tuning knob’ that is actually influencing behavior. Brain circuits can tune into the frequency of other brain parts relevant at the time.
At the time of this writing, the fastest supercomputer in the world is the Tianhe-2 in Guangzhou, China, and has a maximum processing speed of 54.902 petaFLOPS. A petaFLOP is a quadrillion (one thousand trillion) floating point calculations per second. That’s a huge amount of calculations, and yet, that doesn’t even come close to the processing speed of the human brain.
But in 2004, researchers led by neuroscientist David Eagleman demonstrated that test subjects shown two identical wheels spinning adjacent to one another often perceived their rotation as switching direction independently of one another. This observation is inconsistent with Purves' team's discrete-frame-processing model of human perception, which, reason suggests, would result in both wheels' rotations switching direction simultaneously.
A "better" explanation for motion-reversal, Eagleman and his team conclude, is a form of "perceptual rivalry," the phenomenon by which the brain generates multiple (or flat-out wrong) interpretations of a visually ambiguous scene. Classic examples of perceptual rivalry include the spatially ambiguous Necker cube, the hollow-face illusion, and – one of my personal favorites – the brain-bending silhouette illusion, famously illustrated by a spinning dancer that seems to switch directions at the drop of a hat.