Month: June 2015

Darwin and the Divine Programmer

Many have attempted to explain the inspiration and origins of Charles Darwin’s theory of evolution by natural selection. One recent attempt comes from Dominic Klyve in his 2014 article “Darwin, Malthus, Süssmilch, and Euler: The Ultimate Origin of the Motivation for the Theory of Natural Selection,” published in Journal of the History of Biology. While Darwin was undoubtedly inspired by Thomas Malthus’ Essay on the Principle of Population, Malthus’ own ideas about geometric population growth derived from the work of German Protestant pastor and demographer Johann Peter Süssmilch (1707-67) and Swiss mathematician Leonhard Euler (1707-83). According to Klyve, it is here, in the work of Süssmilch and Euler, where we find the “ultimate” origins of Malthus’ geometric theory, and therefore Darwin’s theory of evolution by natural selection.

Interestingly enough, both Süssmilch and Euler were strong physico-theologians. Süssmilch, for example, believed the purpose of demography was the “study of the laws (that is, the ‘divine order’) which manifest themselves in mortality, fecundity, and the propagation of the human species, and which can be analyzed using the statistics of deaths, marriages, births, etc.” As Klyve puts it, Süssmilch “believed that population across Europe and the world was slowly increasing, and that this was due to the handiwork of God.” Euler too believed population growth was an example of “divine order.”

According to Klyve, Darwin needed three things to rightly conceptualize his theory of natural selection: time, rapid population growth, and stability. While the old age of the earth was demonstrated by Lyell’s work, the other two pieces come from Süssmilch and Euler.

While Klyve may have secured a spot for Euler in the intellectual history of Darwin’s work, I am more convinced that another mathematician may have played a similar, if not greater, role in Darwin’s ideas: Charles Babbage.

The Philosophical Breakfast ClubThis past week I have been reading Laura J. Snyder’s engrossing tale of the Philosophical Breakfast Club: Four Remarkable Friends who Transformed Science and Changed the World (2011). The Philosophical Breakfast Club was the creation of four Cambridge men, William Whewell (1794-1866), Charles Babbage (1791-1871), John Herschel (1792-1871), and Richard Jones (1790-1855). These four Cambridge friends met together on Sunday mornings after chapel to discuss Francis Bacon, reforms in knowledge, society, and science. All four would become central to the founding of the British Association for the Advancement of Science (BAAS) in 1831.

In Chapter 8 of this book, “A Divine Programmer,” Snyder gives a fascinating account of Darwin attending one of Babbage’s popular Saturday evening soirées. It was Lyell who had invited Darwin to Babbage’s dinner party, which were, as Darwin later put it in a letter to his sister “the best in the way of literary people in London—and that there is a good mixture of pretty women!”

These parties were also something of a gastronomic affair (much like the BAAS meetings were). According to Snyder, a “table would be laid with punch, cordials, wine, and Madeira; tarts; fruits both fresh and dried; nuts, cakes, cookies, and finger sandwiches…oysters, salads, croquettes, cold salmon, and various fowls.” There was also dancing, music, and literary, artistic, and scientific amusements. But most important of all was Babbage’s demonstration of his Difference Engine.

On this particular evening, with Darwin present in the audience, Babbage, according to Snyder, gave something of a sermon. In describing his machine, Babbage related God as a divine programmer:

“In like manner does God impress His creation with laws, laws that have built into them future alterations in their patterns. God’s omnipotence entails that He can foretell what causes will be needed to bring about the effects He desires; God does not need to intervene each and every time some new cause is required…God, then, is like the inventor of a complex, powerful calculating engine.”

Ignoring for the moment Babbage’s own god-complex, his image of God as programmer, who had, as Snyder puts it, “preset his Creation to run according to natural law, requiring no further intervention,” would lead to a remarkably different view of the relationship between science and religion in the nineteenth century—one that would dramatically alter Darwin’s own view of God’s agency in the natural world.

Babbage’s own view emerged from a confrontation he had with his Cambridge friend Whewell and his Bridgewater treatise, to which Babbage would later add his own, unauthorized work to the series. Indeed, as Snyder observes, Babbage constructed his engine with the purpose to “counter Whewell’s view of miracles as interventions of God outside natural law.”

But Snyder’s most salient point in this chapter is that before attending Babbage’s Dorset Street soirée, Darwin was already struggling with the species question. In fact, Darwin had just returned from his voyage on the Beagle when he was invited to Babbage’s party. “At the very moment he was introduced to Babbage and his machine,” she writes, “Darwin was questioning the fixity of species and the prevalent notion of special creation.”

Just as Babbage anticipated changes and modifications in his machine, he imagined God as a programer and inventor, who would have anticipated changes in creation. Darwin, Snyder suggests, “would have seen how Babbage’s view of a divine programmer gave him a way to reconcile his beliefs in God with his growing sense that new species arose from old ones in a purely natural, evolutionary process.” But in time, however, Darwin and many others would come to think that nature did not need a divine programmer at all.


That Great Temple that’s not Made with Hands


John Tyndall scaling a rock face. From John Tyndall “Hours of Exercise in the Alps” (London, 1871)

I causally opened John Tyndall’s New Fragments (New York: D. Appleton and Co., 1896) this morning on the desktop and was pleasantly surprised by its first entry, “The Sabbath,” a Presidential Address delivered before the Glasgow Sunday Society in October, 1880, which was then quickly published in The Nineteenth Century the following month, and subsequently as a pamphlet in December.

I say “surprised” because I knew that Draper and White had made much use of the then emerging comparative religious studies in their work, including new studies on higher criticism of the Bible. But did Tyndall? Indeed he did, and this short essay demonstrates this physicist’s wide reading in the new emerging field.

He begins by observing that the present age desires “to connect itself organically with proceeding ages.” This “developmental” view has been set forth, he says, by scientific naturalists Darwin and Spencer, but also by religious scholars Renan and Müller. In particular, Tyndall finds a kindred spirit in Scottish theologian John Caird (1820-98). According to Tyndall, Caird maintained in his Introduction to the Philosophy of Religion (1880) that “throughout the ages he discerns a purpose and growth, wherein the earlier and more imperfect religious constitute the natural and necessary precursors of the later and more perfect ones.”

This leads Tyndall to suggest that changes or “transmutations” (his word) in the mind, and especially in religion, are “often accompanied by conflict and suffering.” We see this, he says, with the transition from Roman paganism to Christianity, from “Jewish Christianity” to “Gentile Christianity,” from Peter to Paul. Tyndall derives this narrative from Renan’s L’Eglise Chrétienne, or The Christian Church (1879). But “men at length began to yearn for peace and unity,” he writes, “and out of the embroilment was slowly consolidated that great organisation the Church of Rome.”

Thus each “transmutation,” each period of growth, required some struggle, “in which the fittest survive.”  In short, even the errors, conflicts, and sufferings of bygone times “may have been necessary factors in the education of the world.” This background leads Tyndall to the main point of the essay: namely, the “Sabbath question.” He sees the issue of keeping the Sabbath as a problem of dogmatic theology and not religion, however. Following the anti-Sabbatarian works of Scottish lawyer and phrenologist Robert Cox (1810-72), including his massive Sabbath Laws and Sabbath Duties (1853), his two volume The Literature on the Sabbath Question (1865), and others, Tyndall offers a number of proof-texts showing that adherence to dogma “oppressed almost to suffocation” human civilization. According to Tyndall, Jesus deliberately broke the Sabbath, crowning his “protest against a sterile formalism by the enunciation of a principle which applies to us to-day as much as to the world in the time of Christ”—namely, “The Sabbath was made for man, and not man for the Sabbath.”

What is particularly interesting in this essay is Tyndall’s concern about potential visitors to the British Museum. That is, he is targeting those who “object to the opening of the museums on religious [sic] grounds.” In an ironic twist taken from the natural theological tradition, Tyndall asks “Do they who thus stand between them and the public really believe those treasures to be the work of God? Do they or do they not hold, with Paul, that ‘the eternal power and Godhead’ may be clearly seen from ‘the things that are made’? If they do—and they dare not affirm that they do not—I fear that Paul, with his customary plainness of language, would pronounce their conduct to be ‘without excuse.'” He then lists Luther, Melanchthon, Tyndale, Calvin, Knox, and others, who, in his view, “emphatically asserted the freedom of Christian from Sabbatical bonds.” These reformers, in short, followed a “higher symbolism.”

At the same time, Tyndall could not help himself to a little military language, retelling the tale of the flat earth myth, the tyrannical power of the Catholic Church, and the “booming of the bigger guns” and the “incessant clatter of small arms” in his own day. He subsequently discusses the human nature of the Old Testament and his amazement that “learned men are still found willing to devote their time and energy to these writings under the assumption that they are not human but divine.”

Though this might seem a “liberal,” perhaps “radical” position, Tyndall claims he is truly a “Conservative.” He says that “madness or folly can demolish: it requires wisdom to conserve”! In his estimation, a conservative has foresight, looks ahead and prepares for the inevitable, and thus knows when the true spiritual nature of man will be bound up with his material condition. “Wholesome food, pure air, cleanliness—hard work if you will, but also fair rest and recreation—these are necessary not only to physical but to spiritual well-being.” This doctrine, he says, is the “true Gospel.” Indeed, a “most blessed influence would also be shed upon the clergy if they were enabled from time to time to change their ‘sloth urbane’ for action on heath or mountain.”

Taking a line from English poet, author, and humorist Thomas Hood (1799-1845), Tyndall reveals that his house of worship is not built by any human hands:

That bid you baulk

A Sunday walk,

And shun God’s work as you should shun your own

Calling all sermons contrabands, In that great Temple that’s not made with hands.