Do we truly know nothing at all?

Do we truly know nothing at all?

~~~ It is not possible to "know nothing"!

The new, critically updated, all inclusive, Universal definition of 'Knowledge';

"'Knowledge' is 'that which is perceived', Here! Now!!"

All inclusive!

That which is perceived by the unique individual Perspective is 'knowledge'.
All we can 'know' is what we perceive, Now! and Now! and Now!!!

'Ignorance' is that which is NOT perceived, at any particular moment, by any particular unique Perspective! Here! Now!

If we can't even answer why we're here on this earth, why majority of us are unhappy, and why we're inevitably a dying race by choice, then its probably best to not believe in certainty.
For all we know. We know nothing.

Those of us who have truly had a near-death experience usually, get a birds-eye view into another dimension of Life. It is incomprehensible to even put into words. I feel it or should be, our responsibility to share these experiences with others - with our own Light and Love aligned with the Law of the Universe, and all the wonders thereof... :D

Amazing question!!! U got me thinking... Well I'm a bit of a geek when it comes to time and philosophy, matter, ect. we know nothing bottom line! We humans are constantly discovering new break throughs take the planet Europa for example. Scientists Are thinking there is possiblly life on that planet. Einstein at age 23 invented his law of realativity... So no we know nothing.

Your question: "Do we truly know nothing at all?"

Your first task should be to define your terms, in this case: to know. I cannot do that for you, only for me. You can accept one below or not but you apparently have no definition at all.
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to know
verb
Awareness or familiarity gained by experience of a fact or situation.

knowl·edge
noun
Facts, information, and skills acquired by a person through experience or education; the theoretical or practical understanding of a subject.

In this context, facts and information can be either true, false, or indeterminate.

And the answer to your question is yes, we do. More precisely, individuals acquire accurate perceptions of at least some aspects of reality on a regular basis.

Knowledge changes continuously for a variety of reasons, mostly due to improvement in research technology, opportunity to research, and improved ability to reason and critique.

Fortunately we have ways of recording knowledge outside the human brain.

e·pis·te·mol·o·gy
noun
The theory of knowledge, especially with regard to its methods, validity, and scope. Epistemology is the investigation of what distinguishes justified belief from opinion.
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Your attempt to reason: "Due to the limitations of the human body and it's senses, we cannot perceive actual objective reality, and thus we cannot know with 100 percent certainty whether something propagates the way we predict it to propagate - or whether it exists at all."

You should then ask if you should want to be a paid test subject for a new product: an x-ray emitter designed to keep people warm on cold nights.
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More attempt to reason: "It makes sense, but is this really true? I mean there are some things i do know with 100 percent certainty, like 2+2 = 4 or what i define as a hat is different to what i define as a cuttlefish. Does that mean theses aren't 100 percent true like i thought they were?"

No it does not. You are committing a non sequitur:

"Non sequitur is a Latin phrase that means 'that which does not follow'. It means that the conclusion reached does not follow from the premise(s). Often examples of non sequitur arguments are hilariously disconnected, but those encountered in the wild can be subtle and may not be easily uncovered. The reason that such arguments are fallacious in logic should be fairly obvious."
• http://rationalwiki.org/wiki/Non_sequitur

Your propensity to conflate knowledge of the physical world with familiarity of abstract, symbolic logic (in this case arithmetic) is at the base of your misunderstanding. Numbers are not real things; x-rays are.

sci·ence
noun
The intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural world through observation and experiment.

math·e·mat·ics
noun
The abstract science of number, quantity, and space. Mathematics may be studied in its own right (pure mathematics), or as it is applied to other disciplines such as physics and engineering (applied mathematics).
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Your problem with definitions: "Update: My question seems to be misleading, i meant 'Do we truly not know anything with 100 percent certainty' "

Adding the phrase '100 percent accuracy' does not change your problem addressed at top of this reply.
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It's complicated. Two plus two does equal four, but only because we say it does. Man-made declarations are valid - such as the time of day it is, or which day is Christmas - but that's different from things we propose to be qualities of nature, such as the boiling point of water at sea level. On those things, we could be wrong, or have an incomplete picture, but it is also reasonable to accept things as "true" that happen every time we've ever experienced them. Still, gravity could turn off this afternoon at 2 pm. But it would remain true that gravity existed prior to that.

We on't have to know all the details. It helps to be consistent with the essential relationships.

You can search for "greatest secret human power" to get some tips on how to create a meaning of joy, and value based on the use of your own inherent powers. Be sure to use the quotes in order to get the right links. The first one will be the gshpower one. It has many posts that explain the concepts, and the practice.

There is and always was truth the world was always round even when we all said it was flat we found out . we all said man could not fly now there is his footprint on the face of the moon based on a 100% truth .Plato in the CAVE story shows how people are slow to know the truth but this does not deny the existence of truth . Like today mankind can do anything if only he will make money the servant of mankind instead of its master go to you tube put in Money as Debt see how easy it would be to do the things we need to do if money was our servant

It is true that nothing is perfect in any human condition. What we do have though is reasoning. It is an adequate tool to search out truth and to know with certainty some limited ideas. Not only is it adequate, it is the only tool we have to reach such conclusions. We cannot bring ourselves into the nature of gods or some superhuman intellect where we might obtain knowledge of 2+2= 0. We must restrict our thought to what is observable and understood by reasoning.

It is a false dichotomy to say that either we know something with 100% certainty, or we know nothing at all. There are many things that we can know with 99.999999+ % certainty, leaving only a tiny sliver to cover the extremely remote possibility that we *might* be wrong. Even then, when we do find out that something we thought we knew was wrong, the new information is almost always a minor correction rather than a wholesale overturning. For instance, Einstein's laws of relativity changed our understanding of physics over classical Newtonian mechanics. But we still use Newton's old laws in everyday life, from the building of cars and bridges to plotting the trajectory of interplanetary spacecraft.

I think you underestimate the capabilities of man's senses and overestimate the wildcard factor of the difference between objective reality and our perception of it. Yes it's certainly possible to fool our senses, as any optical illusion will demonstrate. But combined with reason, logic, peer review, and the scientific process, we can minimize such biases and inaccuracies to negligible levels. Consider that if a new particle is discovered in a particle accelerator, physicists will do repeated experiments and analyses to make sure that what they have is real and not just random noise. The Higgs, I believe, has a certainty such that there is less than a 1 in 3-million chance that it was just a series of random fluctuations.

They still allow for that eensy-teensy-tiny chance that they could be wrong, but this tiny sliver of uncertainty is actually a good thing. Science by its very nature demands room for corrections *if* something is shown to be wrong or inaccurate, so even if we're really, REALLY sure that something is correct, it's good to allow room, however small, to say "we were wrong." And that's something you really don't see much in areas that claim absolute knowledge, like religion.

Oh and as a P.S. to those who would say "no, we really don't know anything at all," I would ask, how can you know that? :)