The Year's Best Science Fiction, Vol. 20

“That’s the point,” Erno insisted. “He does like sex. He likes sex fine. But he’s making a sacrifice in order to establish his point: He’s not going to be a prisoner of his dick.”

Erno was sitting out on the ledge of the terrace in front of their apartment, chucking pebbles at the recycling bin at the corner and arguing with his cousin Lena. He had been arguing with a lot of people lately, and not getting anywhere. Every morning he still left as if he were going to biotech, but instead he hung out in the park or gym. It would take some time for his mother to realize he had dropped out.

Lena launched into a tirade, and Erno was suddenly very tired of it all. Before she could gain any momentum, he threw a last pebble that whanged off the bin, got up and, without a word, retreated into the apartment. He could hear Lena’s squawk behind him.

He went to his room and opened a screen on his wall. The latest news was that Tashi Yokiosson had regained consciousness, but that he had suffered neurological damage that might take a year or more to repair. Debate on the situation raged on the net. Erno opened his documents locker and fiddled with a melancholy sonnet he was working on, but he wasn’t in the mood.

He switched back to Tyler’s cryptic message. You can change it. Check exposition. It had something to do with biotech, Erno was pretty sure. He had tried the public databases, but had not come up with anything. There were databases accessible only through the biotech labs, but he would have to return to his practicum to view them, and that would mean he would have to explain his absence. He wasn’t ready for that yet.

On impulse, Erno looked up Tyler in the colony’s genome database. What was the name Debrasdaughter had called him?-Marysson, Thomas Marysson. He found Tyler’s genome. Nothing about it stood out.

Debaters had linked Tyler’s bio to the genome. Marysson had been born thirty-six years ago. His mother was a second-generation cousin; his grandmother had arrived with the third colonization contingent, in 2038. He had received a general education, neither excelling nor failing anything. His mother had died when he was twenty. He had moved out into the dorms, had worked uneventfully in construction and repair for fourteen years, showing no sign of rebelliousness before reinventing himself as Tyler Durden, the Comedian.

Until two years ago, absolutely nothing had distinguished him from any of a thousand male cousins.

Bored, Erno looked up his own genome.

There he lay in rows of base pairs, neat as a tile floor. Over at biotech, some insisted that everything you were was fixed in those sequences in black and white. Erno didn’t buy it. Where was the gene for desire there, or hope, or despair, or frustration? Where was the gene that said he would sit in front of a computer screen at the age of seventeen, boiling with rage?

He called up his mother’s genome. There were her sequences. Some were the same as his. Of course there was no information about his father. To prevent dire social consequences, his father must remain a blank spot in his history, as far as the Society of Cousins was concerned. Maybe some families kept track of such things, but nowhere in the databases were fathers and children linked.

Of course they couldn’t stop him from finding out. He knew others who had done it. His father’s genome was somewhere in the database, for medical purposes If he removed from his own those sequences that belonged to his mother, then what was left-at least the sequences she had not altered when she had planned him-belonged to his father. He could cross check those against the genomes of all the colony’s men.

From his chart, he stripped those genes that matched his mother’s. Using what remained, he prepared a search engine to sort through the colony’s males.

The result was a list of six names. Three were brothers: Stuart, Simon, and Josef Bettesson. He checked the available public information on them. They were all in their nineties, forty years older than Erno’s mother. Of the remaining men, two were of about her age: Sidney Orindasson and Micah Avasson. Of those two, Mica Avasson had the higher correlation with Erno’s genome.

He read the public records for Micah Avasson. Born in 2042, he would be fifty-six years old. A physical address: men’s dormitory, East Five lava tube. He keyed it into his notebook.

Without knocking, his mother came into the room. Though he had no reason to be ashamed of his search, Erno shoved the notebook into his pocket.

She did not notice. “Erno, we need to talk.”

“By talk do you mean interrogate, or lecture?”

His mother’s face stiffened. For the first time he noticed the crow’s feet at the corners of her eyes. She moved around his room, picking up his clothes, sorting, putting them away. “You should keep your room cleaner. Your room is a reflection of your mind.”

“Please, mother.”