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Science & Metaphysics

(Metaphysics has a fluid definition, but generally it is considered a branch of philosophy that deals with abstract concepts explaining fundamental nature of being and universe. The discussion on recently posted article “ Is this world real or an illusion”  is mostly metaphysical as it deals with abstract thoughts on reality of universe which is hard to prove empirically. One of the problem in proving reality of the universe is that we do not have a ” God’s eye View” of the universe as we are part of the universe and our experience of the universe may be subjective than objective. In order to have objective view, we need God’s Eye view, which is not possible. The article below is about place of metaphysics where science is unable to reach. F. Sheikh )

The Paradox We Face When We Use Science To Explain Science

Technology cannot keep pace with theoretical predictions about subatomic reality coming from physics. The same applies to our ability to observe the far reaches of the universe. Theory outstrips data and can become more extravagant with the claims it makes about the character of a reality. Theories are moreunderdetermined by empirical results than ever, but scientists are reluctant to admit that the arguments they put forward are philosophical and metaphysical. Their theories provide a framework in which they can operate, but if they are removed not only from actual observation but from what in principle can be accessible to us, our descendants, or even any possible observer in our universe, it is hard to see that they are anything other than the product of pure reason. Just because scientists use such reasoning does not make it science.
What then has to be the case for genuine science as such to be possible? This is a question from outside science and is, by definition, a philosophical—even a metaphysical—question. Those who say that science can answer all questions are themselves standing outside science to make that claim. That is why naturalism—the modern version of materialism, seeing reality as defined by what is within reach of the sciences—becomes a metaphysical theory when it strays beyond methodology to talk of what can exist. Denying metaphysics and upholding materialism must itself be a move within metaphysics. It involves standing outside the practice of science and talking of its scope. The assertion that science can explain everything can never come from within science. It is always a statement about science.

None of us can stand outside all human understanding and conceptual schemes and talk of what there is or could be.

Similarly, in philosophy the question must be pressed as to where the verificationist—who believes that a proposition is meaningful only if it can be proved true or false—stands in order to deny the possibility of metaphysics. The dilemma can sometimes be expressed by the perennial challenge as to how the verification theory thesis can itself be verified. By its own lights it appears suspiciously metaphysical in that checking it through scientific means clearly begs every question. One answer (and that given at one time by A.J. Ayer) is that the verification principle is an “axiom.” That, though, does not settle the question of why we should choose such an axiom. It seems somewhat arbitrary and leaves open the possibility that others can just choose a different starting place without fear of rational criticism. Nothing has then been solved.

Some philosophers, particularly of a pragmatist persuasion, have talked of the impossibility of a “God’s eye view.” None of us can stand outside all human understanding and conceptual schemes and talk of what there is or could be. We are all anchored where we are. This is a truism, but it can quickly result in questioning the possibility of any detached reasoning. It takes us very quickly to a philosophical relativism as a destination, according to which we are the creatures of time and place. That though does not just demolish the possibility of philosophy and metaphysics. It undermines the whole self-understanding of empirical science. The latter depends on the idea of a disinterested, objective reason that can be shared by all humans everywhere. It is above all concerned with truth, in effect the ultimate value guiding the practice of science that must be respected by all scientists. That is why falsifying or exaggerating the results of experiments strikes at the heart of science. Scientific truth is not respectful of persons or cultures, and it is certainly not dependent on any.

Science has a universal reach. A scientific discovery about the character of the universe should be one that notional scientists in far-off galaxies could share. The physical laws at least of our own universe remain constant and are intelligible anywhere in it. This gives a clue to a basic fact about science that is often taken for granted by working scientists. Science investigates an objective reality open to all and independent of mind.

http://nautil.us/issue/29/scaling/why-science-needs-metaphysics

 

Functioning ‘mechanical gears’ seen in nature for the first time

Functioning 'mechanical gears' seen in nature for the first time

A plant-hopping insect found in gardens across Europe – has hind-leg joints with curved cog-like strips of opposing ‘teeth’ that intermesh, rotating like mechanical gears to synchronise the animal’s legs when it launches into a jump.

The finding demonstrates that gear mechanisms previously thought to be solely man-made have an evolutionary precedent. Scientists say this is the “first observation of mechanical gearing in a “.

Through a combination of anatomical analysis and high-speed video capture of normal Issus movements, scientists from the University of Cambridge have been able to reveal these functioning natural gears for the first time. The findings are reported in the latest issue of the journal Science.

The gears in the Issus hind-leg bear remarkable engineering resemblance to those found on every bicycle and inside every car gear-box.

Each gear tooth has a rounded corner at the point it connects to the gear strip; a feature identical to man-made gears such as bike gears – essentially a shock-absorbing mechanism to stop teeth from shearing off.

The gear teeth on the opposing hind-legs lock together like those in a car gear-box, ensuring almost complete synchronicity in leg movement – the legs always move within 30 ‘‘ of each other, with one microsecond equal to a millionth of a second.This is critical for the powerful jumps that are this insect’s primary mode of transport, as even miniscule discrepancies in synchronisation between the velocities of its legs at the point of propulsion would result in “yaw rotation” – causing the Issus to spin hopelessly out of control.

Functioning 'mechanical gears' seen in nature for the first time

http://m.phys.org/news/2013-09-functioning-mechanical-gears-nature.html#jCp

posted by f.sheikh

Is This World Real Or An Illusion ?The short answer is: we don’t know!

(Plato believed the world is a shadow and an Illusion.The ‘Truth’ lies more clearly in our minds in ‘ abstract ideal’ and not in natural things of the world observed through our senses. Aristotle argued that methodically applying mathematical proofs, experience and observation to natural things will lead to Truth. The article below by Marina Galprina looks at the issue through the minds of modern scientists, F. Sheikh).

Sean Carroll

(Cosmologist and Physics professor specializing in dark energy and general relativity, research professor in the Department of Physics at the California Institute of Technology)

How do we know this is real life? The short answer is: we don’t. We can never prove that we’re not all hallucinating, or simply living in a computer simulation. But that doesn’t mean that we believe that we are.

There are two aspects to the question. The first is, “How do we know that the stuff we see around us is the real stuff of which the universe is made?” That’s the worry about the holographic principle, for example — maybe the three-dimensional space we seem to live in is actually a projection of some underlying two-dimensional reality.

The answer to that is that the world we see with our senses is certainly not the “fundamental” world, whatever that is. In quantum mechanics, for example, we describe the world using wave functions, not objects and forces and spacetime. The world we see emerges out of some underlying description that might look completely different.

The good news is: that’s okay. It doesn’t mean that the world we see is an “illusion,” any more than the air around us becomes an illusion when we first realize that it’s made of atoms and molecules. Just because there is an underlying reality doesn’t disqualify the immediate reality from being “real.” In that sense, it just doesn’t matter whether the world is, for example, a hologram; our evident world is still just as real.

The other aspect is, “How do we know we’re not being completely fooled?” In other words, forgetting about whether there is a deeper level of reality, how do we know whether the world we see represents reality at all? How do we know, for example, that our memories of the past are accurate? Maybe we are just brains living in vats, or maybe the whole universe was created last Thursday.

We can never rule out such scenarios on the basis of experimental science. They are conceivably true! But so what? Believing in them doesn’t help us understand any features of our universe, and puts us in a position where we have no right to rely on anything that we did think is true. There is, in short, no actual evidence for any of these hyper-skeptical scenarios. In that case, there’s not too much reason to worry about them.

The smart thing to do is to take reality as basically real, and work hard to develop the best scientific theories we can muster in order to describe it. Link to full article

http://www.hopesandfears.com/hopes/now/question/216693-is-reality-real

 

ARTIFICIAL INTELLIGENCE AND WISDOM

Shared by Mirza Ashraf

Abstract: We are living in an era of Scientific Enlightenment in which an incredibly instantaneous technological development is changing everything in our life. At this point, past decades of scientific and digital era have produced great comforts of life and easy access to knowledge. Today, there is an alarming call, “The Robots are coming! Artificial Intelligence is coming!” No doubt, science produces greater knowledge, enhances our understanding of the natural world and the universe, but the important point is, does it help enhance our wisdom which is more important than knowledge? We know that without wisdom human beings do not know how to use ethically scientific developed instruments for the benefit of mankind. Thus the crucial questions before us are: Can science help us to become wiser? Can artificial intelligence create or help us receive or discover wisdom? Can future super-computer be equipped with a wisdom chip to propound spontaneously and wisely as an incomputable and unpredictable situation demands? Scientists working on artificial intelligence are discovering to equip the digital computers with a brain performing as good as human brain. It seems possible scientists may discover a way or a process of uploading human mind with all that exists in an individual’s brain, such as, memory, perception, emotion, experience, wisdom and consciousness, as an artificial neural network or mind-transfer from a biological brain to a computational device. Some scientists believe that theoretically it would be possible that a person’s brain can be scanned, mapped, and its activities transferred to a computer hard drive. If this process becomes practicable, computers would be able to respond in the same way as the original human brain. But a technological prospect of wisdom is not is still utopian, as human brain is not a digital computer but a highly sophisticated neural network. Its neural networks are collections of hundred billions of neurons that constantly rewire and reinforce themselves after accomplishing a new task. The biological brain’s neural network requires no programming which is parallel with a hundred billion neurons firing instantly to accomplish a single task to learn and to create something new. A digital computer has a fixed architecture having a devised operating system based on input, output, and processor. Thus the crucial questions before us are: Can artificial intelligence create or help us receive or discover wisdom? Can future super-computer be equipped with a wisdom chip to propound spontaneously and wisely as an incomputable and unpredictable situation demands? …….

To read full article, Please visit: https://independent.academia.edu/MirzaAshraf