Ruling Out the Obvious
One by one, every ordinary explanation collapses
Over the following weeks Aya became a hunter of ordinary explanations, chasing each to its end.
A signal could not be called unless every dull possibility had first been destroyed.
Suspecting a satellite, she compared the timing against every object orbiting overhead.
Having checked the orbital catalogues, she found nothing that matched the signal's steady beat.
She would not trust the data unless the same pattern appeared from two separate instruments.
Considering from the observatory itself, she switched off every machine in turn.
Having powered down the building, she watched the pulse continue, faint but utterly unbroken.
No signal from Earth could survive unless something was still transmitting nearby.
Ravi, her fellow analyst, suggested a passing aircraft or a distant military radar.
Testing that idea, they tracked the signal for hours as the planet turned beneath the sky.
An earthly source could not remain fixed among the stars unless it too moved with them.
Yet the signal stayed locked to a single point far beyond the edge of the solar system.
Having eliminated the satellites, the aircraft, and the machines, Aya felt the ground narrowing.
She reminded herself that she must not believe unless the numbers left her no other choice.
Natural pulsars were tested next, their known rhythms laid beside the one.
Comparing the two, she saw at once that no pulsar folded its pulses in this way.
A pulsar could not structure within structure unless physics itself behaved strangely.
Each night another ordinary answer collapsed, and the strangeness grew harder to .
Having ruled out almost everything familiar, Aya was left holding an uncomfortable silence.
She did not feel ; she felt the fear of someone standing at an unmarked door.
"We cannot ," Ravi warned, "unless we can name what this thing is not."
Working late, they built a list of every rejected explanation, page after careful page.
The list grew long, and yet not one entry could account for the folded pulses.
Aya understood that ruling out the was only the beginning of a far harder road.
Somewhere beyond the last crossed-out line lay a possibility she was afraid to write.
Unless she was very wrong, the noise of the universe had begun to a voice.