Sense data fills the gaps between our eyes and the world around us. But is it a straw man in the argument for experience? By Lisa McLellan
My last article introduced you to Descartes and his famous statement ‘I think therefore I am’. Descartes rejected all beliefs that he considered even remotely doubtable in order to arrive at a foundation of absolutecertainty. One of the first categories of beliefs to be rejected was beliefs based on sensory information.
Descartes recognised that a particular experience, e.g. the experience of seeinganapple, is no guarantee that an apple is actually there. The experience may be an illusion, and in fact there is a nectarine that looks particularly apple-like. Maybe the experience is a hallucination and there is in fact nothing there at all. Continue reading →
What can we know? Lisa lines up the thoughts of one of the world’s biggest thinkers to explain how little we really know… By Lisa McLellan
Today I will introduce you to Descartes and one of the most well known statements in modern philosophy,
‘I think, therefore I am’.
Descartes is widely considered the father of modern western philosophy. His writings and his methods set the stage for the development of philosophy and his topics of discussion are still hotly debated today. Continue reading →
Are we the same as we always were – and do our memories matter? The myth of the continuous self. By Lisa McLellan
It is the start of a new year, which for many represents a new start. With all the best intentions, we promise ourselves that this year we will be good. We resolve to quit smoking, to go on a diet, to get fit. We see the start of a new year as an opportunity to reinvent ourselves. Of course, only a select few of the most determined individuals will follow through with their resolutions (I have given up on such false promises!) It remains true, however, that we are allchanging, all the time. The problem is: what makes you you? Continue reading →
Say hello to Mary – the Zombies’ friend – here to demonstrate that conscious experience cannot be fully explained in physical, scientific terms. By Lisa McLellan
Last week some Zombies suggested that conscious experience may be epiphenomenal. That is to say, it might be a by-product of physical processes, with no causal effect on the physical world. Let us follow this train of thought with a look at Frank Jackson‘s imaginary Mary…
Frank Jackson’s thought experiment:
Imagine a scientist, Mary, who is an expert on the physical processes involved in colourvision. She knows how various surfaces reflect different wavelengths of light, and how this light affects the retina, how this causes signals to be transferred to the visual cortex of the brain, and how these signals are processed. She knows everything there is to know about how the physical processes of colour vision work.
Mary has carried out her extensive research while confined to a black and white room, (or wearing black and white goggles, or with a rare condition which causes her to see only in black and white, depending on which version you prefer). The important point here is that she has never actually experienced colour vision directly. As the thought experiment goes, she is then released from the black and white room (or removes the goggles, or is cured) and for the first time ever, she experiences colour vision. She sees the colour red for the first time. Continue reading →
I am going to talk to you about zombies. Not the Dawn of the Dead style zombies – philosophical zombies. Philosophical zombies are indistinguishable from humans like me and you – they can walk, talk, work and blog. The only difference is that they have no conscious experience. Imagine a world identical to ours in every way – but populated with these philosophical zombies instead of us. To an outsider, it would be impossible to tell the difference. Continue reading →
A quick look at morals – what they are and what they do! By Lisa McLellan
When I make a moral judgment (i.e. it is wrong to kill an innocent person) I hold this to apply to everybody, not just to myself.
If it were subjective, I would have to admit that although it is wrong for me, it is not wrong for you. Morality is not like this, however – if I believe that it is wrong to kill an innocent person, then I believe it is wrong for you to kill an innocent person. It doesn’t matter if you disagree with me. We don’t just make up our own moral codes arbitrarily and accept that others will have different moral codes.
We do construct moralcodes that differ between individuals, societies and cultures – but this is because we don’t always know exactly where the boundaries of morals lie – especially with contentious issues like abortion, euthanasia, torture (think 24!) – not because we consider morality a matter of personaltaste. We assume that wherever these boundaries lie they must apply universally. Just as contradictory scientific theories can’t both be right, contradictory moralcodes cannot both be right. Continue reading →
Philosophy, bank robbery, immorality and the letter Z…meet another great underrated author – Tibor Fischer and his motley Thought Gang. By Hattie French
He’s written six books to date, including his volume of short stories, entitled Don’t Read This Book If You’re Stupid. Regrettably, the title was one of the best things about this particular book, but now, at least, you don’t have to read it to find this out.
Fischer’s earlier novels are much more rewarding. His 1993 debut, Under the Frog, follows two young basketball players as they struggle to enjoy life in Soviet Hungary – despite being “under a frog’s arse down a coalmine” – a proverb for when you are really at the lowest point in life. His third novel, The Collector Collector, remains the only book I have ever encountered which was narrated by a piece of sentient pottery – the eponymous collector – who obsessively catalogues every aspect of its five-thousand-year existence, down to types of noses and most obnoxious owners. Continue reading →