World Philosophy Day 2020 – Marvellous mysteries and the unity of science

According to the United Nations, philosophy is ‘the study of the nature of reality and existence, of what is possible to know, and of right and wrong behaviour. It is one of the most important fields of human thought as it aspires to get at the very meaning of life.’ Today we are celebrating World Philosophy Day by sharing a post written by Francesca Bellazzi, a PhD student on the ERC-funded MetaScience Project*, which delves into marvellous mysteries and the unity of science…

‘But what vast gaps there were, what blank spaces, she thought leaning back in her chair, in her knowledge! How little she knew about anything. Take this cup for instance; she held it out in front of her. What was it made of? Atoms? And what were atoms, and how did they stick together? The smooth hard surface of the china with its red flowers seemed to her for a second a marvellous mystery.’ (Virginia Woolf, The Years)

So reflects Eleanor in Virginia Woolf’s The Years. How can this china with red flowers be made of atoms that somehow stick together? Many solutions to this marvellous mystery have been offered, and these are the kinds of questions that the MetaScience philosophy project addresses.

The world, like the cup, seems to be composed of different levels, one clustered beneath the other. Different disciplines study these different levels. Each of them focusses on a specific level of inquiry: physics at the physical one, chemistry at the chemical one, economics at the economical one, and so forth. However, how these levels relate to each other is not obvious. They are not isolated clusters such that the things happening in the ‘biological’ and ‘physical’ clusters are completely independent from each other, nor do they seem easily reducible to the one unique level of physical particles.

In light of this, two extremes have been debated within philosophy. Some philosophers are in favour of what is known as ‘strict identity-based reductionism’, arguing that phenomena at the higher level – such as biological phenomena – are strictly identical to phenomena at the physical level. Such a view might lead to ‘eliminativism’, which essentially says that if all higher-level entities are identical to their lower-level components, then we should stop speaking or even worrying about the higher-level stuff. The only fundamental level is then the physical one, and all the sciences have to be reduced to that. However, this is now an ‘old dream’ – the world is way too complex to be pinned down by identity relations.

Against this reductive dream stand those that argue for the disunity of science. Often called Diagram titled 'An Old Reductive Dream' showing the levels‘pluralism’, this position argues that the physical, chemical, biological and social realms can all equally understand the world on their own. However, this route also appears too extreme, as it disregards important interactions between levels and the growing exchanges between disciplines. 

In the MetaScience project we are investigating how to achieve the unity of the sciences by saving the unity of the world itself without being an identity reductionist. Our project studies how the different levels can interact via a variety of dependency relations, such as ‘multiple realisation’ and ‘multiple determination’. Multiple realisation means that a higher level can be realised by different lower-level phenomena. An example is colour, where different microphysical phenomena can realise the same shade. Different surfaces (composed of different microphysical particles) can reflect the same wavelength. Multiple determination goes the other way around: the same lower level can determine different higher-level properties, such as moonlight proteins that play different functions in different environments. Our aim is to use these – and other – dependency relations to find out whether the sciences can be effectively unified.

Let us try now to be a bit more concrete and go back to the china cup: how can its smooth surface be composed of atoms?

Illustration of a china cup decorated in a flower pattern
Illustration by Francesca Moro

The strict reductionist would say that the cup is nothing more than the result of physical stuff interacting with each other following the laws of physics. The pluralist, on the other hand, would say that any of chemistry, physics or psychology can give us an equally valid story about the cup. However, both options seem to take the wrong direction. There is no 1:1 correspondence between the colour red of the flowers and some underlying microphysical phenomena; as we saw earlier, colour is an instance of multiple realisation. However, there are some relations between the colour level and the microphysical one; these are not self-isolated clusters.

Possibly, the truth lies in the middle. Pursuing philosophical enquiry, MetaScience studies the possibility that within one cup, all sorts of different properties can be found and that this is not mysterious. One and the same china cup can be described by different disciplines that consider different properties: its material composition can be studied by chemistry, its solidity by physics, its geometrical form by mathematics, its colour by the interaction between optics and neurophysiology, its function by psychology and sociology. Nevertheless, this does not imply that this single cup is nothing but atoms or that the different descriptions of the cup are self-standing and detached. Rather, it means that the existent cup is only one and yet is complex. It is composed of many levels studied by different disciplines that all help to understand how the compositional parts of the cup are related. The mystery might be solved without taking away the marvellous. Thanks to the interaction between sciences and philosophy, we are able to formulate a unified view of the one china cup with its red flowers.

by Francesca Bellazzi,

PhD Student in the ERC-funded Project MetaScience (771509)


*The MetaScience project has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant agreement No. 771509).

 

History PhD student, Chris Wemyss, tells us about his research and why Arts Matter

People often talk about the creative aspects of Arts and Humanities, but I was drawn towards studying History because I enjoyed the idea of challenging established facts and ideas. This has only grown through my Bachelors and Masters degrees, and now at PhD level I get the chance to design the questions I want to answer, and work out how to answer them.

My PhD research looks at the British community in Hong Kong from 1980 to 2000, tracking how it changed in preparation for the handover of the territory to China in 1997. Researching for this has taken me all over the UK, to the US, and to Hong Kong, allowing me to collect a variety of sources and interview many different people. Now in the final stages of my PhD, I am weaving these sources together to form a narrative that hopefully gives a unique insight into a relative recently period of history.

The Arts and Humanities have a reputation for exclusivity, and distance from the ‘real world’, but I have found this to be patently untrue during my studies. The stories I uncover on a daily basis, through newspapers, diaries, oral histories, letters, and other countless sources, put ordinary people at the centre of the historical narrative. They often have similar hopes and fears as people do today, and provide us with valuable insight into their period, and how it relates to today’s events.

History is also about developing skills that we sometimes take for granted. During my years of study I have learned how to research and find information quickly, comprehend the meaning of documents, and synthesise these into a narrative that can be written up. These skills are useful in everyday life, and I have used them extensively in jobs I have held during my studies.

The best thing about studying History, and the Arts and Humanities, is discovering the links between the city and country you live in, and much wider narratives. It helps give meaning to the streets you walk down everyday, and things we take for granted in everyday life, especially in a deeply historical city like Bristol. It also means that people here are interested in and care about the Arts and Humanities, and the times I have interacted with them at talks, debates, and exhibits have been the most rewarding of my time at university and remind me that arts matter outside the university just as much as inside.