Kyle didn't notice the shift at first.
Not because it was small.
But because it was inconsistent.
Omega behaved differently depending on the subject exposed to it.
Plants adapted slowly.
Animal tissue reacted unpredictably.
Adult biological samples resisted longer than expected before stabilizing—or collapsing.
But the pattern that kept repeating… was age.
Sarah noticed it first.
"You've been staring at those charts for an hour," she said.
Kyle didn't look up. "It doesn't make sense yet."
"What doesn't?"
He tapped the data cluster on the screen.
"Age-dependent adaptation rate."
Sarah leaned closer.
Rows of experiments. Fish. Plant tissue. Small mammal samples.
All categorized.
All compared.
"You're saying younger organisms adapt faster," she said slowly.
Kyle nodded.
"Not just faster. More completely."
That should have been a minor observation.
Instead, it changed everything.
Kyle pulled up another set of results.
"Adult samples show resistance buildup. Cellular rejection increases with structural maturity."
He highlighted a second column.
"But early-stage biological systems don't resist."
Sarah frowned. "Because they're weaker?"
"No."
Kyle hesitated.
"Because they're still forming."
That sentence landed differently.
Sarah crossed her arms. "So what? Babies adapt better. That's just biology."
Kyle shook his head.
"This isn't normal adaptation."
He zoomed in on a sample.
A plant seedling exposed to Omega from germination.
Its structure was not just stronger.
It was reorganized.
Kyle spoke slowly.
"It's integrating Omega into its developmental blueprint."
Sarah blinked. "Blueprint?"
"Growth itself is being rewritten."
Silence.
That was the first time Sarah stopped writing.
Kyle leaned back.
"If Omega is introduced during development… it doesn't just enhance the organism."
He paused.
"It becomes part of what the organism is."
Sarah didn't respond immediately.
Because she understood the implication faster than she wanted to admit.
"You're saying adults can't fully integrate it," she said quietly.
Kyle nodded.
"Not without instability."
"And children can?"
"Yes."
The workshop felt colder.
Not physically.
Conceptually.
Sarah lowered her voice. "That means timing matters more than dosage."
Kyle corrected her.
"Timing is everything."
A long silence followed.
Machines hummed.
Water dripped somewhere in the background.
The sound of normal life continuing while something unnatural quietly redefined its rules.
Sarah finally spoke again.
"If that's true… then early exposure determines what someone becomes."
Kyle nodded.
"Yes."
"And if it's mismanaged?"
Kyle didn't answer immediately.
Because the answer was obvious.
But saying it made it real.
"It becomes irreversible," he said.
Sarah sat down slowly.
"That's… not something the world should know."
Kyle agreed immediately.
"They would weaponize it before they understand it."
That was the first time neither of them spoke for several minutes.
Kyle turned back to his notes.
"Which means we need controlled environments."
Sarah frowned. "For what?"
"For studying early-stage integration safely."
She narrowed her eyes. "Kyle…"
He didn't look at her.
"I'm not talking about children as subjects."
He paused.
"I'm talking about understanding development before it becomes corrupted by instability."
Sarah didn't look convinced.
But she also didn't interrupt.
Because she could see where his thoughts were going.
Even if he wasn't saying it directly.
Kyle wrote a new section in his notebook:
Developmental Sensitivity Threshold
Under it:
Hypothesis: Omega integration efficiency is inversely proportional to biological maturity.
He stopped writing.
Then added one more line.
Therefore, early exposure defines final structure.
That sentence stayed on the page longer than anything else.
Later that night, Kyle stood outside the workshop.
The city was quiet.
Too quiet.
Or maybe he was just hearing more than he used to.
Sarah joined him on the roof.
"You're thinking too far ahead again," she said.
Kyle didn't deny it.
"That's where the problem is."
She studied him.
"You're not just trying to understand Omega anymore."
Kyle nodded.
"I know."
Sarah hesitated.
"Then what are you trying to do?"
Kyle looked up at the sky.
For a moment, he didn't answer.
Then:
"I'm trying to make sure it doesn't happen without control."
Sarah frowned. "What doesn't happen?"
Kyle's voice was quiet.
"Evolution."
A pause.
The wind moved between them.
Sarah finally said, "That sounds like you think you can guide it."
Kyle didn't look at her.
"I don't think I can."
A beat.
"I think I have to try."
That was the difference.
And Sarah felt it clearly.
Below them, the workshop lights flickered slightly.
Inside, experiments continued to run.
Inside those experiments, Omega continued to behave according to rules no one else in the world understood yet.
And somewhere far away, outside human awareness, something in the cosmic field shifted again.
Not reacting.
Not observing.
Noticing.