Abstract
In this chapter I outline the second wave of my work on the metaphysics of science. Physics only ever accepts unified theories. This means, I realized, that physics makes a big, influential, highly problematic metaphysical assumption about the nature of the universe: it has some kind of underlying unity. Precisely because this assumption is influential and problematic – no more than a conjecture – it is vital that it is made explicit and critically assessed as an integral part of physics itself, in an attempt to improve it. We need, I came to realize, a new kind of science which represents the metaphysical presuppositions of physics in the form of a hierarchy of assumptions, and actively seeks to improve the most substantial and problematic of these assumptions, low down in the hierarchy, as an integral part of physics itself. This new conception of science – aim-oriented empiricism – puts physics and metaphysics together to recreate natural philosophy. Major, outstanding problems in the philosophy of science, including the problem of induction, are solved by this new conception of science. It has revolutionary implications for research in the metaphysics of science. I spell out twenty implications this new conception of science has for research in the metaphysics of science.
This is a preview of subscription content, access via your institution.
Buying options

Notes
- 1.
Books of mine elaborating the argument for the urgent need to transform academia so that its basic aim becomes to seek and promote wisdom include: Maxwell (1976a, 1984, 2004a, 2014a, 2014b, 2017a, b, c, 2019). For diverse summaries of the argument, published over the years, see Maxwell (1980, 1991, 1992, 1994a, 2000a, 2001c, 2002a, 2003, 2005d, e, 2006b, 2007b, 2008, 2009a, 2010b, c, d, 2011c, 2012a, b, c, d, e, 2013b, 2015b, 2016b, 2017f, 2018b, c, d).
- 2.
In his The Logic of Scientific Discovery, Popper holds that the simplicity of a theory is to be equated with its degree of falsifiability: see Popper (1959, p. 140). But this is obviously false: the falsifiability of a theory can be increased by adding on independently testable hypotheses which would, in general, drastically reduce, or destroy, the simplicity of the theory. Later, Popper in effect recognized this point when he declared that a “new theory should proceed from some simple, new, and powerful, unifying idea about some connection or relation (such as gravitational attraction) between hitherto unconnected things (such as planets and apples) or facts (such as inertial and gravitational mass) or new “theoretical entities” (such as field and particles)”: see Popper (1963, p. 241). Popper acknowledges that this”requirement of simplicity is a bit vague” and threatens to involve one in “an infinite regress” (p. 241). But the real problem is this: if the aim is truth, no presumption being made about the truth, how can it be rational only to accept theories that meet Popper’s “requirement of simplicity”? What grounds can we have for holding that such “simple” theories are more likely to be true than equally empirically successful complex theories?
- 3.
I intended the title to be understood to allude to Popper’s The Logic of Scientific Discovery, in the hope that it would be understood that what I was arguing for was a development and improvement of Popper’s falsificationism.
- 4.
- 5.
It may be objected that these horribly disunified rival theories are not really empirically more successful than the accepted theory T. Unified, explanatory theories are inherently more verifiable empirically than disunified, non-explanatory theories. Thus, even though the disunified rivals fit available empirical data better than the accepted theory T, they are not as empirically successful as T, not as well verified. The problem with this argument is that it is only in a certain sort of universe – a universe in which the true theory of everything is unified – that the strategy of regarding unified theories as better verified empirically than disunified ones, other things being equal, will pay off. In a disunified universe, such a strategy would fail: see Maxwell (2015a).
- 6.
Is this thesis metaphysical, in the sense that it is neither empirically verifiable nor falsifiable? Yes, it is. The thesis – call it M – asserts: not (T1 and T2 and … T∞), where T1, T2, … T∞ are all disunified physical theories. M cannot be verified empirically, because that would require that all of T1,…T∞ are falsified, and that cannot be done because there are infinitely many of them. M cannot be falsified either, because that would require that one of T1…T∞ is verified, and that cannot be done because physical theories cannot be verified. Hence M is neither verifiable nor falsifiable; hence it is metaphysical.
- 7.
The falsity of a number of specific metaphysical theses influentially associated with physics in the past does not mean that the much more general metaphysical thesis that nature is uniform or unified is false too. It does indicate, however, that in this domain of the metaphysics of physics, we are quite likely to get things wrong.
- 8.
For a discussion of just how widely scientists and philosophers of science accept standard empiricism, see Maxwell (1998, pp. 38–45).
- 9.
See Maxwell (1998, pp. 104–5) for a list of seven problems concerning unity or simplicity of theory.
- 10.
Richard Feynman has provided the following amusing illustration of this point: Feynman et al. (1965, pp. 25–10 to 25–11). Consider an appallingly disunified, complex theory, made up of 1010 quite different, distinct laws, stuck arbitrarily together. Such a theory can easily be reformulated so that it reduces to the dazzlingly unified, simple form: A = 0. Suppose the 1010 distinct laws of the universe are: (1) F = ma; (2) F = Gm1m2/d2; and so on, for all 1010 laws. Let A1 = (F – ma)2, A2 = (F – Gm1m2/d2)2, and so on. Let A = A1 + A2 + … + A10 10. The theory can now be formulated in the unified, simple form A = 0. (This is true if and only if each Ar = 0, for r = 1, 2, … 1010).
- 11.
See Jeffreys and Wrinch (1921); Einstein (1982, pp. 23–4); Friedman (1974); Kitcher (1981, 1989); Bartelborth (2002); Watkins (1984, pp. 479–99); McAllister (1996); Schurz (1999); Weber (1999); Bartelborth (2002). For a criticism of Jeffreys and Wrinch, Friedman, Kitcher, and Watkins, see Maxwell (1998, pp. 63–8).
- 12.
- 13.
See Maxwell (2017a, p. 44–5).
- 14.
The electromagnetic and weak forces are only partially unified by the Salem-Weinberg electroweak theory.
- 15.
An empirically successful theory of everything unified in a type (5), (6) or (7) way to degree N = 1 might in practice be regarded as acceptable.
- 16.
This positive feedback process of improving presuppositions and methods, or aims and methods, in the light of what stimulates empirical progress and what does not, has actually gone on in physics, and in natural science more generally – or we would still be stuck with Aristotelian science. But because the scientific community has taken standard empiricism for granted, it has only been possible for this scientifically fruitful, positive feedback process to proceed in a somewhat furtive, constrained manner.
- 17.
In what follows I give only a brief sketch of AOE, and reasons for accepting AOE. The best detailed argument for AOE is given in Maxwell (2017a). See also Maxwell (2017b, especially ch. 5; and 2017c). I must stress, however, that AOE was first expounded and argued for in publications that appeared much earlier: see Maxwell (1974, 1984, 1993a, 1998, 2004a, 2005a, b).
- 18.
This last possibility can of course be interpreted in the way I argued for in Maxwell (1968a).
- 19.
“Physicalism” has been interpreted in a number of ways by various philosophers of science. Here it means simply: the universe is such that the true physical theory of everything is unified, in a type (5) to (8) way with N = 1.
- 20.
- 21.
As physics has advanced from Galileo to today, fundamental physical theory has become (a) vastly greater in the scope of its predictions while, at the same time, retaining (b) a reasonable degree of overall unity. It is important to apprecieate that (a) and (b) are, on the face of it, at odds with one another. It is easy to have a high degree of unity if one’s theory has very little empirical content, much more difficult if it has vast empirical content, predicting a vast range of diverse phenomena. What is so striking about modern fundamental physical theory is that it has vast empirical content, predicting a vast range of diverse phenomena, and at the same time a reasonable degree of unity at the level of basic theory. It depicts a striking degree of unity throughout a vast diversity of phenomena.
- 22.
- 23.
Given the account of theory unity sketched here, it is dazzlingly clear that persistent acceptance of unified theories in this sense must inevitably commit physics to making a big metaphysical assumption about the world (the world is such that disunified theories are false whatever their empirical success may be). SE cannot very well acknowledge this account of theory unity for, to do so, destroys SE.
- 24.
- 25.
- 26.
- 27.
- 28.
- 29.
- 30.
- 31.
- 32.
See note 31.
- 33.
- 34.
- 35.
- 36.
- 37.
- 38.
- 39.
- 40.
- 41.
Maxwell (1998, pp. 125–6).
- 42.
See note 38.
- 43.
- 44.
- 45.
Maxwell (2005a, 2014c).
- 46.
- 47.
- 48.
References
Braithwaite, R. B. (1953). Scientific explanation. Cambridge: Cambridge University Press.
Einstein, A. (1982). Autobiographical notes. In P. A. Schilpp (Ed.), Albert Einstein: Philosopher-scientist. La Salle: Open Court, Vol. 1 (first published in 1949).
Feynman, R., Leighton, R., & Sands, M. (1965). The Feynman lectures on physics (Vol. II). Reading: Addison-Wesley.
Friedman, M. (1974). Explanation and scientific understanding. Journal of Philosophy, 71, 5–19.
Jeffreys, H., & Wrinch, D. (1921). On certain fundamental principles of scientific enquiry. Philosophical Magazine, 42, 269–298.
Kitcher, P. (1981). Explanatory unification. Philosophy of Science, 48, 507–531.
Kitcher, P. (1989). Explanatory unification and causal structure. In P. Kitcher & W. C. Salmon (Eds.), Scientific explanation, Minnesota studies in the philosophy of science (Vol. XIII, pp. 428–448). Minneapolis: University of Minnesota Press.
Longuet-Higgins, C. (1984). For goodness sake. Nature, 312, 204.
Maxwell, N. (1968a). Can there be necessary connections between successive events? British Journal for the Philosophy of Science, 19, 1–25 (Reprinted in Swinburne (1974, pp. 149–174).
Maxwell, N. (1972b). A new look at the quantum mechanical problem of measurement. American Journal of Physics, 40, 1431–1435.
Maxwell, N. (1973). The problem of measurement - real or imaginary? American Journal of Physics, 41, 1022–1025.
Maxwell, N. (1974). The rationality of scientific discovery. Philosophy of Science, 41, 123–153 and 247–295.
Maxwell, N. (1976a). What’s wrong with science? Hayes: Bran’s Head Books, (2nd ed., 2009, Pentire Press, London).
Maxwell, N. (1976b). Towards a micro realistic version of quantum mechanics. Parts I and II, Foundations of Physics, 6, 275–292 and 661–676.
Maxwell, N. (1980). Science, reason, knowledge and wisdom: A critique of specialism. Inquiry, 23, 19–81.
Maxwell, N. (1982). Instead of particles and fields. Foundations of Physics, 12, 607–631.
Maxwell, N. (1984). From knowledge to wisdom: A revolution in the aims and methods of science. Oxford: Blackwell.
Maxwell, N. (1988). Quantum Propensiton theory: A testable resolution of the wave/particle dilemma. British Journal for the Philosophy of Science, 39, 1–50.
Maxwell, N. (1991). How can we build a better world? In J. Mittelstrass (Ed.), Einheit der Wissenschaften: Internationales Kolloquium der Akademie der Wissenschaften zu Berlin, 25–27 June 1990 (pp. 388–427). Berlin/New York: Walter de Gruyter.
Maxwell, N. (1992). What kind of inquiry can best help us create a good world? Science, Technology and Human Values, 17(1992), 205–227.
Maxwell, N. (1993a). Induction and scientific realism: Einstein versus van Fraassen. British Journal for the Philosophy of Science, 44, pp. 61–79, 81–101 and 275–305.
Maxwell, N. (1993b). Does orthodox quantum theory undermine, or support, scientific realism? The Philosophical Quarterly, 43(1993), 139–157.
Maxwell, N. (1993c). Beyond Fapp: Three approaches to improving orthodox quantum theory and an experimental test. In A. van der Merwe, F. Selleri, & G. Tarozzi (Eds.), Bel’s theorem and the foundations of modern physics (pp. 362–370). Singapore: World Scientific.
Maxwell, N. (1994a). Towards a new enlightenment: What the task of creating civilization has to learn from the success of modern science. In R. Barnett (Ed.), Academic community: discourse or discord? (pp. 86–105). London: Jessica Kingsley.
Maxwell, N. (1994b). Particle creation as the quantum condition for probabilistic events to occur. Physics Letters A, 187, 351–355.
Maxwell, N. (1998). The comprehensibility of the universe. Oxford: Oxford University Press.
Maxwell, N. (1999a). Has science established that the universe is comprehensible? Cogito, 13(1), 139–145.
Maxwell, N. (2000a). Can humanity learn to become civilized? The crisis of science without civilization. Journal of Applied Philosophy, 17(2000), 29–44.
Maxwell, N. (2001c). Can humanity learn to create a better world? The crisis of science without wisdom, in The moral universe, Tom Bentley and Daniel Stedman Jones, London, Demos Collection 16, 2001, pp. 149–156.
Maxwell, N. (2002a). Is science neurotic? Metaphilosophy, 33(3), 259–299.
Maxwell, N. (2002b). The need for a revolution in the philosophy of science. Journal for General Philosophy of Science, 33, 381–408.
Maxwell, N. (2003, February). Science, knowledge, wisdom and the public good. Scientists for Global Responsibility Newsletter, 26, 7–9.
Maxwell, N. (2004a). Is science neurotic? London: Imperial College Press.
Maxwell, N. (2004b). Does probabilism solve the great quantum mystery? Theoria, 19/3(51), 321–336.
Maxwell, N. (2005a). Popper, Kuhn, Lakatos and aim-oriented empiricism. Philosophia, 32(1–4), 181–239.
Maxwell, N. (2005b). A Mug’s game? Solving the problem of induction with metaphysical presuppositions. http://philsci-archive.pitt.edu/2230/
Maxwell, N. (2006a). Practical certainty and cosmological conjectures. In M. Rahnfeld (Ed.), Is there certain knowledge? (pp. 44–59). Leibzig: Leipziger Universitätsverlag.
Maxwell, N. (2007a). From knowledge to wisdom: A revolution for science and the humanities. London: Pentire Press [2nd ed. of Maxwell (1984)].
Maxwell, N. (2007b). From knowledge to wisdom: The need for an academic revolution. London Review of Education, 5(2), 97–115.
Maxwell, N. (2008). Are philosophers responsible for global warming? Philosophy Now, 65, 12–13.
Maxwell, N. (2009a). How can life of value best flourish in the real world? In L. McHenry (Ed.), Science and the pursuit of wisdom: Studies in the philosophy of Nicholas Maxwell (pp. 1–56). Frankfurt: Ontos Verlag.
Maxwell, N. (2010b). Reply to comments on science and the pursuit of wisdom. Philosophia, 38(4), 667–690.
Maxwell, N. (2010c). The urgent need for an academic revolution: The rational pursuit of wisdom. In C. Tandy (Ed.) Death and anti-death, volume 7: Nine hundred years after St. Anselm (1033–1109). Palto Alto: Ria University Press, ch. 7, pp. 211–38.
Maxwell, N. (2010d). Universities: From knowledge to wisdom. Scientists for Global Responsibility Newsletter, 38, 18–20.
Maxwell, N. (2011a). Three philosophical problems about consciousness and their possible resolution. Open Journal of Philosophy, 1(1), 1–10.
Maxwell, N. (2011c). We need an academic revolution. Oxford Magazine, 309, 15–18.
Maxwell, N. (2011d). Is the quantum world composed of propensitons? In M. Suárez (Ed.), Probabilities, causes and propensities in physics, Synthese Library (pp. 221–243). Dordrecht: Springer.
Maxwell, N. (2012a). Arguing for wisdom in the university: An intellectual autobiography. Philosophia, 40(4), 663–704.
Maxwell, N. (2012b). Creating a better world: Towards the university of wisdom. In R. Barnett (Ed.), The future university: Ideas and possibilities (pp. 123–138). New York: Routledge.
Maxwell, N. (2012c). How universities can help humanity learn how to resolve the crises of our times – From knowledge to wisdom: The University College London experience. In G. Heam, T. Katlelle, & D. Rooney (Eds.), Handbook on the knowledge economy (Vol. 2, pp. 158–179). Cheltenham: Edward Elgar.
Maxwell, N. (2012d). Our global problems and what we need to do about them. In C. Tandy & J. Lee (Eds.), Death and anti-death anthology, vol. 10: Ten years after John Rawls (1921–2002), Ch. 7 (pp. 131–174). Palo Alto: Ria University Press.
Maxwell, N. (2012e). The menace of science without civilization: From knowledge to wisdom, text of keynote lecture given in Warsaw 20 May 2011, published in Dialogue and Universalism, no. 3, 2012, pp. 39–63.
Maxwell, N. (2013a). Has science established that the cosmos is physically comprehensible? In A. Travena & B. Soen (Eds.), Recent advances in cosmology (pp. 1–56). New York: Nova Science Publishers Inc. Chapter One.
Maxwell, N. (2013b). Knowledge or wisdom? The Philosophers’ Magazine, issue 62, 3rd quarter 2013, 17–18.
Maxwell, N. (2014a). How universities can help create a wiser world: The urgent need for an academic revolution. Exeter: Imprint Academic.
Maxwell, N. (2014b). Global philosophy: What philosophy ought to be. Exeter: Imprint Academic.
Maxwell, N. (2015a). What’s wrong with aim-oriented empiricism? Acta Baltica Historiae et Philosophiae Scientiarum, 3(2), 5–31.
Maxwell, N. (2015b). Can the world learn wisdom? Philosophy Now, June/July, pp 32–35.
Maxwell, N. (2017a). Understanding scientific progress. Saint Paul: Paragon House.
Maxwell, N. (2017b). In praise of natural philosophy: A revolution for thought and life. Montreal: McGill-Queen’s University Press.
Maxwell, N. (2017c). Karl Popper, science and enlightenment. London: UCL Press.
Maxwell, N. (2017f). Can universities save us from disaster? On the Horizon, 25(2), 115–130 http://www.emeraldinsight.com/doi/full/10.1108/OTH-04-2016-0019.
Maxwell, N. (2018b). We need progress in ideas about how to achieve Progress. Metascience, 27, 347. https://doi.org/10.1007/s11016-018-0312-4.
Maxwell, N. (2018c). The scandal of the irrationality of academia, Philosophy and Theory in Higher Education, special issue on “The Anthropocene and Higher Education”, Autumn, 2018.
Maxwell, N. (2018d). Do we need an academic revolution to create a wiser world? In R. Barnett & M. A. Peters (Eds.), The idea of the university: Volume 2: Contemporary perspectives. New York: Peter Lang.
McAllister, J. (1996). Beauty and revolution in science. Ithaca: Cornell University Press.
Mellor, D. H. (1991). Matters of metaphysics. Cambridge: Cambridge University Press.
Popper, K. R. (1959). The logic of scientific discovery. London: Hutchinson.
Popper, K. R. (1963). Conjectures and refutations. London: Routledge and Kegan Paul.
Salmon, W. C. (1974). The pragmatic justification of induction. In R. Swinburne (Ed.), The justification of induction (pp. 85–97). Oxford: Oxford University Press.
Schurz, G. (1999). Explanation as unification. Synthese, 120, 95–114.
van Fraassen, B. C. (1985). Empiricism in the philosophy of science. In P. M. Churchland & C. A. Hooker (Eds.), Images of science (pp. 245–308). Chicago: University of Chicago Press.
Watkins, J. (1984). Science and scepticism. Princeton: Princeton University Press.
Weber, E. (1999). Unification. Synthese, 118, 479–499.
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Switzerland AG
About this chapter
Cite this chapter
Maxwell, N. (2018). Chapter 3 Aim-Oriented Empiricism: Exposition, and Implications for Science and the Philosophy of Science. In: The Metaphysics of Science and Aim-Oriented Empiricism. Synthese Library, vol 403. Springer, Cham. https://doi.org/10.1007/978-3-030-04143-4_3
Download citation
DOI: https://doi.org/10.1007/978-3-030-04143-4_3
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-04142-7
Online ISBN: 978-3-030-04143-4
eBook Packages: Religion and PhilosophyPhilosophy and Religion (R0)