Echoes
The next morning, Lena was back in her lab, her energy rekindled by the success of last night's experiment. She approached the Quantum Feedback Device with the reverence one might reserve for a sacred relic. It was the first time in her career that the idea of true causality—the power to change outcomes—felt tangible, a tool she could actually wield. She was already thinking about all the ways she could use it, the insights she could send back to herself, the mistakes she could avoid.
As she set up the equipment, she noticed a message waiting on her computer's console, blinking like a gentle nudge from the future.
*Test successful. Be prepared to repeat tomorrow.*