Pushing through the threshold, the train lurched into a violent acceleration, bathing the cabin in the pulsing crimson of emergency alarms. Standing at the opposite end was another version of himself—older, hollow-eyed, and covered in gray dust. "You're too late," the duplicate murmured before darting away. The desperate pursuit that followed defied reality itself. He chased his shadow through a carriage flooded with shallow, rippling water that reflected an impossible galaxy of stars, then stumbled into another where gravity aggressively tilted sideways, sending luggage floating weightlessly across the aisle. Bursting through a car where shattered glass hung suspended in frozen time, he finally cornered his exhausted double inside the driverless control cabin. But beyond the windshield lay no tunnel—only the silent, majestic expanse of Earth floating in the void of space. A glowing console began to count down from five, accompanied by the deep, distorted thumping of a racing heartbeat. The duplicate smiled with a heartbreaking sadness. "Every time you choose to wake up," he whispered, "I disappear."