Waver

Waver learned about honest wobble long before he learned about surveys.

He hatched among the pondskaters and dragonfly-nymphs, and his uncle was the pond's weather-reader, a damselfly who told the working-creatures when rain was coming. When Waver was young, he heard his uncle tell a mayfly, "Rain by evening — but I'd say seven chances in ten, not a certainty."

"Why not just say it'll rain?" Waver asked afterward. "It sounds surer."

His uncle hovered beside him. "Because it might not," he said simply. "If I say 'it will rain' and it doesn't, I've lied. If I say 'about seven in ten,' and it stays dry, I told the truth — the truth was always a chance, not a promise." He drifted a little in the warm air. "Folk trust a reader who admits the wobble more than one who's always sure and sometimes wrong. Certainty is easy to say and hard to keep. An honest band you can keep every time."

Waver never forgot it. Years later, over a page of survey results instead of a sky, he would think: the sharpest-sounding number is often the least honest. Give the band it really lives in.

When he was grown, Waver drifted to the DataForge academy, trailing his two faint edge-threads.

At the door stood Datum, who ran the academy. "Show me how you report what you're not quite sure of," Datum said.

Waver didn't recite. He hovered over a single chalked dot on the workbench, and then, instead of pointing at the dot, he spread his two threads to mark a band around it. Then he fetched a huge pile of tally-marks — many, many answers — and hovered over their dot; this time his threads drew in close, a narrow band.

"A number from a few answers wobbles wide," Waver said, drifting over the first. "A number from many careful answers wobbles narrow." He steadied over the second. "So I never give a bare dot. I give the dot and its band — 'about sixty, give or take eight' — and the band gets tighter as the handful grows. The band isn't weakness. It's the number telling the truth about how much it could move."

Datum watched the two threads narrow over the larger pile. "Then always show the band," Datum said, and stepped aside to let him in.

In Waver's workshop, a young shrew named Tansy burst in triumphant. "I've proved the east meadow has more butterflies than the west! East: fourteen. West: eleven. East wins!"

"How many times did you count?" asked Waver, hovering close.

"Once each. One morning."

Waver spread his threads wide over both numbers. "Fourteen and eleven, counted once. But butterflies drift; a cloud passes, a flower opens. Count the east again tomorrow and you might get eleven; the west, fourteen." His threads overlapped in the middle. "Your two bands sit right on top of each other. The three-butterfly gap is smaller than the wobble in either count. So you can't yet say east beats west — you've only got two numbers that could easily swap places."

Tansy's face fell. "So I proved nothing?"

"You proved the meadows are close," Waver said gently, "which is a real finding. To say one truly leads, you'd count many mornings and see if the bands ever pull apart." He trailed a thread along her page. "A gap only counts when it's bigger than the wobble. A gap inside the wobble is just the numbers breathing."

Tansy took a slow breath. "I'll count all week, then."