The seemingly inexorable process of specialisation in the sciences and other intellectual endeavours—the breaking down of knowledge into categories so narrow and yet so deep that their mastery at the professional level seems to demand forsaking anything beyond a layman's competence in other, even related fields, is discouraging to those who believe that some of the greatest insights come from the cross-pollination of concepts from subjects previously considered unrelated. The twentieth century was inhospitable to polymaths—even within a single field such as physics, ever narrower specialities proliferated, with researchers interacting little with those working in other areas. The divide between theorists and experimentalists has become almost impassable; it is difficult to think of a single individual who achieved greatness in both since Fermi, and he was born in 1901.

As more and more becomes known, it is inevitable that it is increasingly difficult to cram it all into one human skull, and the investment in time to master a variety of topics becomes disproportionate to the length of a human life, especially since breakthrough science is generally the province of the young. And yet, one wonders whether the conventional wisdom that hyper-specialisation is the only way to go and that anybody who aspires to broad and deep understanding of numerous subjects must necessarily be a dilettante worthy of dismissal, might underestimate the human potential and discourage those looking for insights available only by synthesising the knowledge of apparently unrelated disciplines. After all, mathematicians have repeatedly discovered deep connections between topics thought completely unrelated to one another; why shouldn't this be the case in the sciences, arts, and humanities as well?

The life of Thomas Young (1773–1829) is an inspiration to anybody who seeks to understand as much as possible about the world in which they live. The eldest of ten children of a middle class Quaker family in southwest England (his father was a cloth merchant and later a banker), from childhood he immersed himself in every book he could lay his hands upon, and in his seventeenth year alone, he read Newton's Principia and Opticks, Blackstone's Commentaries, Linnaeus, Euclid's Elements, Homer, Virgil, Sophocles, Cicero, Horace, and many other classics in the original Greek or Latin. At age 19 he presented a paper on the mechanism by which the human eye focuses on objects at different distances, and on its merit was elected a Fellow of the Royal Society a week after his 21st birthday.

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