Gabita returned in winter, four years after her father had retired. Two hours south of the airport lay this small industrial town, once significant enough to appear in textbooks—it manufactured one-fifth of the world’s generic drug exports. Thirty years of her father Raman were embedded in that one-fifth. Now darkened factories stretched beyond the windows, and watching their silhouettes, Gabita reflected on how outdated the numbers she had memorized as a child had become.

Raman stood as soon as dinner was finished. When he suggested visiting the factory, Gabita hesitated for a moment. Darusa Pharma’s Factory Number 3 had closed two years ago. Ever since that day when Raman completed the final batch and left, the reactor line had been idle, and the building sat empty with transfer documents filed at the regulatory agency. Over thirty places in this city had undergone the same fate. Those who invested in automated equipment survived; those who missed the timing quietly disappeared.

The barbed wire was rusted. Raman unlocked the old padlock with the ease of someone retrieving it from memory. There was no security. As they walked through the Factory 2 corridor, he spoke: “I designed this line myself. When I lowered the reaction temperature by 0.3 degrees, the yield increased by 2 percent. It took me four months to find that 0.3 degrees.”

Gabita nodded. At the place where she worked, a molecular structure inference device could complete similar searches in minutes. It could determine what reaction conditions were optimal, what pathway produced impurities, and when fed data, it delivered answers. She had never mentioned this to Raman. It wasn’t so much that she hadn’t had the opportunity—it was more accurate to say she hadn’t wanted to.

When they entered the hall lined with reactors, Raman stopped. He raised his hand and touched the side of the stainless steel tank. It was cold—the coldness of machinery that had been idle for years. “Your grandfather didn’t have any of this. He did everything by intuition. He read the color changes with his eyes and knew when the reaction was complete by smell. There weren’t many numbers in his notes. He wrote mostly by feel.”

Gabita looked down at her father’s hands. They were discolored in places from handling reagents for decades. She had seen her grandfather’s notes when she was a child—reaction sketches written firmly in pen, arrows, question marks, and a memo reading “smells good.” Her father’s notes were filled with numbers. Her screen held no notes. There was only input and output.

Beyond the window at the end of the hall, the world outside was visible. Scattered lights remained among the closed factories—the few that had survived. Raman spoke quietly. “They switched their equipment over there. They lived. We missed the timing.” Gabita couldn’t tell whether that was regret or explanation.

Gabita didn’t know what to say. She didn’t know if missing the timing and disappearing were the same thing. She didn’t know how much what she was doing now, how much the answers her device spat out, were contained within this coldness.

Raman turned away from the window. “Let’s go. It’s cold.”

As she locked the factory door and stepped outside, Gabita watched the back of her father’s head. The silhouette of the roof where moonlight faded to gray stretched beyond him. Her grandfather’s intuition, her father’s numbers, and Gabita’s device. The three had never stood before the same problem at the same time, yet in this cold hall, it seemed as if all three existed simultaneously. What that meant remained a mystery to her even long after closing the door.

This article is for information only and is not investment advice.