The first excess lasted long enough for everyone to see it on the source and too briefly for the monitor to care.
Juno watched the display remain quiet. The technician had warned them when she would introduce the second signal, but she had not told Juno the exact interval. On the independent source record two marks overlapped. On Juno’s display a pale line continued as though nothing had happened.
“Stop,” the guardian said.
Eli had not moved from his chair. Nothing had crossed his inherited set. Even so, the command made the muscles between his shoulders contract, familiar as a hand closing on an old injury.
The technician disconnected the source at the marked point and left the monitor running. She wrote down the stop time. Juno reached for the interval control, then arrested her hand when the technician lifted the failed strip.
“First we keep this.”
“I know why it missed.”
“Then your explanation can accompany it.”


