What is a knowing, thinking, and believing? How do we know we exist? How do we define existence? These are some of the questions in life that we don’t think about and that’s what TOK is about. TOK challenges us to use our brain and knowledge to its full capacity. It will help us to better understand the world and everything around us.
This is what I think each word means. When you “know” something, you are 100% sure it is correct. Knowing means that it is a fact; it was somehow proven beforehand. For example, “I know two plus two equals four.” When you “think”, you are unsure and it is merely a feeling of uncertainty. For example, “I think the party will be on Friday.” When you say you “believe”, it is an opinion. It isn’t proven, yet, you have a feeling it is true or right. For example, “I believe there are other forms of life out there in the solar system.”
In my book, to exist, you have to be able to think and make decisions or take up physical space. I believe that everyone has a purpose in life and it is up to them to find that “purpose”. They also have the choice of taking or passing up on this “purpose”. When you make decisions, you are affecting everything around you; whether it’s the people, the environment, etc and that’s how you know you exist. When you’re that homeless person down the street and everyday, people pass you by, you feel like you don’t even exist; as if you were invisible. Everyone exist, it’s just the level of “existence” varies. Aside from living beings, objects exist too because they take up physical space. If it’s there and you can see it, then it exists. Objects have matter and they are like obstacles. For example, a wall, you can’t just walk right through the wall because the wall has matter and is solid; therefore it exists.
My sources come from biology itself and scientific research. Psychology proves that we have a brain and different parts of the brain have a different function. Biology is a source because this is our biological source. We are born with natural instincts and biological traits; mentally and physically. There are things that are beyond our control and that is what biology is.
Referring to the TOK diagram, I think that is how knowledge is obtained. The knower, you, in the middle; then, followed by the internal (biological) things such as emotions, language, sense-perception, and reason; finally, the external factors such as math, science, history, etc. By using your internal qualities, you take in the external factors and mold them into knowledge. Use what you have and work your way from there is basically what I think the diagram is trying to convey.
I don’t think anything is ever a “justified true belief” because it will always lead to the “why?” and the “how do we know ______ is correct?” Eventually, it will get out of control and it’ll be impossible to come to a conclusion.