Yve, inventor extraordinaire, stood before her creation - a machine promising to capture memories in hues of light. But doubt gnawed at her. Memories, like emotions, were multifaceted, could they truly be confined to a single color?

Days blurred as Yve experimented, capturing laughter in greens, sunsets in oranges, serenity in blues. Each held a fragment, but the heart, the essence, remained elusive. She stared at the machine with utmost frustration, its metallic gleam devoid of the warmth she sought.

Suddenly, a voice startled her. "What is your favorite color?" An old woman stood there, her eyes twinkling. Yve hesitated, "It changes, like the day. Sometimes a calming blue, other times a fiery orange."

The woman smiled. "Your memories are like that, child. Not one color, but a beautiful blend, ever-changing. Don't capture them, let them flow, like the colors of the sunset."

Yve's eyes widened. She wasn't capturing memories, but their essence and the emotions within. With newfound focus, she added a prism. Now, the machine didn't capture, it transformed memories into shimmering, ever-changing displays of light, reflecting the soul within.

At the science fair, a kaleidoscope of light that emanates from her invention mesmerized the judges. It wasn't just a machine but a proof to the complexity of human experience. Yve realized then, her favorite color, like life itself, wasn't a single shade, but the ever-changing symphony of them all.