What is direct realism?
The theory that we see the world around us as it truly is
The theory that we can see objects
The theory that we are connected with objects
The theory that we only perceive a representation of objects
What is the argument for perceptual variation?
Our perception doesn't ever vary
Our perception is not always the same as what exists
Our bodies change what we perceive
We can change what we perceive
What philosopher gave the table example for perceptual variation?
What is the argument from illusion?
How do we know can we directly perceive if what is exists can be different to our minds
If we can have illusions then we directly perceive what is not real as well
Our whole perception experience could just be an illusion
If we were perceiving the world then we wouldn't be able to have perceptions
What is the argument from hallucination?
Hallucinations mean that we cannot directly perceive the world because we directly perceive them
We directly perceive everything, including hallucinations
We could just be hallucinating everything so we wouldn't be directly perceiving
We can also perceive what is in our mind, so how can we know an external world exists
In the time lag argument there is an 8 minute delay. This disproves direct realism as..
The 8 minute delay is the time it takes to process the information, so we cannot be directly perceiving
Everything we perceive has already happened, so we cant be directly perceiving it
The 8 minute delay is how long it takes for sense data to travel from object of perception to perceiver
We cant perceive something that has already happened