Nancy Steadman Martin is the only woman in the world, over 70, to break 21 minutes in the 1500 freestyle! What does it mean to be truly unstoppable at 70? Steadman Martin embodies this question as she continues to shatter world swimming records while maintaining a thriving career as a senior law partner. Her remarkable journey defies every notion about aging and physical limitations. She's also a mermaid--really! Nancy's swimming resume reads like a fantasy novel: world records in the 800 an...