Introduction
Imagine the following situation:
My friend wants to buy a car, so I’m having a conversation about it with him. In one moment I ask him about the color of my car. I might suppose that he’s embarrassed not to know it, but he doesn’t want to admit. Suddenly he says: ”Red.” I smile and say that it is right.
Let us consider the situation. Does he know the color, or he just had a guess? Is it the real knowledge?
He might believe and have an argument such as that red is my favorite color, but still it isn’t knowledge
since he has never seen my car. In these terms I will argue about the topic:
“Knowledge is true belief based on argument.” Plato
“Is justified true belief knowledge?” Edmund Gettier
Also I will consider the validity of arguments, the problem of true knowledge considering the material world as a source. I will compare rationalists and empiricists and give an overall conclusion about the subject.
Examining the words which correlate to knowledge: true, justified, belief, argument, validity
a) The paradox of lottery
Knowledge is said to be true, justified belief. How do we know whether something is true or not? How can we be sure of it? We can justify our belief, but to consider it as knowledge, it can be tricky. If I play the lottery ticket, I can say that I know I won’t get the numbers on a ticket as the odds are over 0,9999… not to get them. But I also know that the winner will be pulled out. Who knows? Maybe I am the winner. But, at the same time I know two things which are paradoxical. I can’t win and lose at the same time. What is here knowledge? My justified belief because of odds, or the true fact that there will be a winner? If I don’t win, can I say: “I knew it.”? I can’t, because there was a chance for me to win.
b) Epistemic luck
Does the knowledge exist without a person to acknowledge it? We can agree that the knowledge is true, justified belief, but we might not have it. How? I am the astrophysicist, and I’m searching for a new planet similar to Earth. My colleague is doing the same job, but separately and not in the same time. We both have justified belief that a few light years away there is planet which is equally distant from its sun as the Earth is, we suppose that the size is also similar … Simply, all parameters indicate that we are right. Next, I wait for clear night to see it through the telescope. I am astonished because I haven’t found the planet. Next day, my colleague finds it. How to explain this?
This is called an epistemic luck. I had a bad and my colleague a good one. What is the difference between me and him? He had an opportunity to gain a knowledge, and I didn’t. He has completed his theory and I haven’t. Let us summarize. This example goes along with the assumption that knowledge is true, justified belief. We both had justified belief, but we weren’t hundred percent sure. In order to join the word true, we had to search for a planet. We even had the arguments for believing. However, because of my bad epistemic luck I cant’ say I have knowledge of the planet now.
c) The criterion for knowledge
Imagine we say that there are not rich people because there is no one with 1 000 000 000 000 000 dollars, euros or any other valute? Can you say that there are not fast people because they can’t run 5 meters in 1 second? No, we must have certain criterion which is not exaggerated. If there is no man over three meters tall, it doesn’t mean that there are not tall people in this world. Furthermore, it cannot be true as it is impossible for a person to run 5 meters in one second or to be tall over three meters. So, it would be knowledge if these faculties were possible, because they would have been true. As they are not possible, not true ,they can’t consist a knowledge.
The validity of arguments and correlation with Plato and Descartes
When we believe in something, we believe because we have the good reasons for it. We have arguments. Yet, how to check the validity of our arguments? Can we know something without having the arguments? Knowledge can’t be just a base of information as the information can be true or not, and knowledge must be true, otherwise it would not be knowledge.. Why are the arguments so important? We can say that we ‘know’ something but it can be based on wrong arguments as you accidentally ‘acknowledge’ it ( typical example- school lesson). It is like puzzle. You can have a greater picture of what you are supposed to put together, yet to complete it for a real you have to put all the parts together. It is like you are doing the car puzzle and you miss the parts of the front wheel. It is not anymore a car but a wheel-missing car. The same works for knowledge. We can have greater perspective of it, but it is not completed. ( I will argue about this relativity later in the essay).
Plato gave an example which goes along with his philosophy and we can use it as an argument. Man was drawing over the sand the squares and triangles in order to show that a slave, who had never studied geometry before, knew to calculate complex length of them. He didn’t indicate the answers, he was just posing the questions. The slave got it right based on arguments and drawings in the sand. Having arguments is necessary to have a knowledge. Knowledge is true because of something and this ‘something’ must be an argument. If the argument is invalid, then the knowledge isn’t true, therefore we can’t even name it as a knowledge. I have discussed about Plato because I will make some comparison between rationalists and empiricists later in this essay.
How to have valid arguments which ‘carry’ the truth of knowledge? Descartes posed four steps how to gain episteme. First we start with the truths that are clear and indubious. Second, we split the problem in as many parts as we need to solve the problem ( analogy of posing the equation). Third, we identify the variables and solve them using the other parts of problem (analogy of solving the equation). And the last step is to check whether solution is appropriate. This is named as scientific method or deductive conclusioning. We start from something that cannot be false. Based on this fact, we gain the true knowledge. Why is this so important-to have a strong basis for knowledge? If someone asks us why we believe in something and consider it as true, you are supposed to give your reasons so:
How do you know R1? – Because of R2.
How do you know R2? – Because of R3.
…
How do you know Rn? – Because of Rn+1.
Imagine the facial expression of person who finds out that his or her acknowledgment of R99 is based on invalid arguments (R100). The whole knowledge is not anymore a knowledge. This is why Descartes posed these four steps. It is important that every link works. On every why, we must have valid because. If R1—–>R2 we cannot say we know R2, therefore we know R1.
The problem of episteme due to the external world-source of episteme
Could we be deluded? Descartes went to the point that even there is a demon who deludes us. Maybe an alien has put my brain in the computer and controls me. How to prove it is not true? How to deny this possibility? The fact is that I think to have certain knowledge, but I can’t reject this possibility no matter how unthinkable it might be. I don’t know whether I am writing this essay, I don’t know whether I am abroad. It seems scary that you can’t be sure of anything.
The major views of epistemology in philosophy are rationalism and empiricism. And their major preoccupation is the source of our episteme. Do we have innate ideas as rationalists thought or we gain episteme only through our experiences from the external world? How did the slave from Plato’s story come to the solution? According to rationalists- via innate ideas, an argument-the slave wasn’t taught. If we perceive things from the external world and acknowledge situations based on these things, we might only think it is true and categorize it as knowledge. This is the relativity I will talk about. Is the knowledge true, justified belief only in our world, which is full od delusions or it has to have a unique, overall truth? If we have a problem of material world, then we have a problem with our episteme.
Let consider three empiricists:
Locke argued about ideas and qualities. He asserts that primary qualities are representing things in their reality and secondary depend on our senses, perception. Berkeley opposed by asserting that we are only in touch with our ideas and material world cannot be proven to exist. Hume indicated the problem of causality and induction. Three different opinions.
Locke’s representative realism is the major objection of other empiricists. We can’t know whether the qualities we perceive are real, as we can’t prove the external world. And our senses might be the deceptive (consider the example od daltonism, or a person who is hallucinating- he/she sees what no other person sees, and yet that is ‘real’ for hallucinating people). Even though Berkeley considers that we are in touch only with our ideas, how to explain what we perceive? It can be delusion , but even then we perceive something which comes from the outside- it cannot be neglected. Hume’s main preoccupation is the problem of causality. If after A always comes B, do we have to make conclusion that A causes B.
If we see B and not A, do we have to assume that before B there was A, or if we see A do we have to make assumption there will be B? Do we know it? Is it true? It is only our experience which tells us that we know the relation between A and B. For any other person it is true, justified belief (therefore a knowledge) that fire will burn you every time you are so near to the candle. According to Hume, it doesn’t represent knowledge as we can’t be sure of causality. This leads to the problem of induction, as we tend to generalize things, and we must not do that. If you throw away a gamble and get number six 100 times, we can’t conclude that it will be still number six the very 101st time. We do not know that.
Anyway, that is fine according to Hume, as we work perfectly in this world (positive thesis), no matter whether we are sure of our knowledge through perception. If I play with the coin in my room, when I put it in front of me, it looks round, and when I look at it at different angle, it might look elliptical. So, in one situation we have quality 1 of the coin, and in the other we have quality 2 of it. What is here knowledge? Is it round or is it elliptical? It doesn’t matter, because depending on situation, we can adjust our perception and knowledge of the coin.
Conclusion
We are like fish in a round aquarium. It perceives differently than we do because of the shape of aquarium . What is the straight line for us, it is not for the fish. Moreover, if it were rational, it would have created the laws for its ‘reality’ and it would work perfectly well in it. In Kant’s philosophy the perceptions are arranged in categories. These categories are a priori, and they seem like a keyhole of what we perceive. We can see what is inside the room, but through the shape of a keyhole-nothing more, nothing less. There are certain things we cannot know, which are transcendent according to Kant and other things we are often unsure of, but we do well with our knowledge.
We have considered so far the gaining of knowledge, its features, the truth of it, its source… And we have come to the conclusion that the knowledge is indeed true ,justified believe based on argument with emphasizing the word true, as it might be arguable in the means of reality and our perception.