In science one experiment, whether it succeeds or fails, is logically followed by another in a theoretically infinite progression. According to the underlying myth of modern science, this progression is always replacing the smaller knowledge of the past with the larger knowledge of the present, which will be replaced by the yet larger knowledge of the future. In the arts, by contrast, no limitless sequence of works is ever implied or looked for. No work of art is necessarily followed by a second work that is necessarily better. Given the methodologies of science, the law of gravity and the genome were bound to be discovered by somebody; the identity of the discoverer is incidental to the fact. But it appears that in the arts there are no second chances. We must assume that we had one chance each for The Divine Comedy and King Lear. If Dante and Shakespeare had died before they wrote those works, nobody ever would have written them.

While scientific knowledge is believed to progress through   (A)   experiments, an artistic work tends to be   (B)   to its creator with no limitless sequence implied.