white lace gown and reading an issue of the American Journal of Human Genetics, a woman of perhaps forty sat in a wicker chair, its fan-shaped back spreading behind her like Botticelliâs scallop shell giving birth to Venus.
âEvery Saturday morning,â Javier told me, âyouâll find two elegant and fascinating creatures in our conservatoryâmy friend Dr. Sabacthani, and this queen of the trees, Proserpine.â
âThe mangrove has a name?â I asked.
âA Christian name only,â the woman replied in a sandpaper voice. Her face was a disconcerting conjunction of high-cheeked beauty and humorless ambition, as if Katharine Hepburn had been cast in her prime as Catherine de Medici. âThe experiment was not sufficiently successful for me to admit Proserpine to the Sabacthani family.â She flipped a pair of gold-framed polarized lenses into place over her eyeglasses, then set her book atop a wheeled cart holding a coffee urn,its shiny convex surface elongating Proserpineâs reflection into an El Greco figure. âForgive me for not rising to greet you, Mason, but Iâve not been well lately, and etiquette would only aggravate my condition. Call me Edwina. May I offer you some coffee?â
âThe food of philosophers,â I said, though a better case could be made for beer.
Javier gestured me into a second fan-back chair and, approaching the urn, released an ebony stream into a mug bearing the Odradek Pharmaceuticals logo. He passed me my coffee, filled a second Odradek mug for Edwina, and exited the dome, walking backward with the dexterity of a Hawthorne tour guide showing prospective students around the campus.
âTell me, Mason, is sin something that Anglo-American philosophers worry about these daysââEdwina rested a bony hand on the mangroveâs nearest rootââor do you leave all that to your Continental colleagues?â
âSin?â
âNo sooner had Dr. Charnock and I given Proserpine a rudimentary brain than it became clear that we had sinned.â
âA brain?â
âItâs gone now, most of it. Her first wordsââ
âWords?â
âWe also gave her a tongue, a larynx, primitive lungs, and a crude circulatory system. Her first words were, âPut me out of my misery.â Not what we expected to hear. What do you suppose she meant?â
âAre you testing me?â
Edwina smiled.
âPerhaps youâd created a kind of basket case.â I sipped my beverage. It had a heady chocolate flavor, as if Charnock had induced a coffee bush to have sex with a cacao plant. âA being with an inherent desire to move its body through space but lacking any means to do so.â
âGood,â Edwina said, acclaiming my answer with a clap of her hands. âDawson did not overestimate you. I told Dr. Charnock we had no choice but to amputate Proserpineâs consciousness. Mercy demanded it. He said such an operation would amount to physician-assisted suicide, a practice he has always found repellent. So I took up a scalpel and performed the procedure myself. Thereâs a lesson in all this, a parable for the neural-network community as they go about imposing self-awareness on their computers. Beware, ladies and gentlemen. To pour a free-floating intellect into a machine is to risk making an infinitely frustrated soul.â
âA tormented Dr. Johnson,â I mused, âeternally eager to kick a stone and thus give Berkeleyâs idealism the boot. But he can find no stone in his universe, nor a leg with which to kick it.â
âWell said.â
Just then a mild tremor passed through the mangroveâs limbs and roots. Edwina and I exchanged freighted glances.
âYou didnât imagine that,â she said. âI couldnât excise the entire nervous system without causing death. Every so often, Proserpine shudders.â
Curious, I rose and picked my way across