John Breakey's presentation at the HRPA 2015 conference emphasizes the critical role of effective onboarding in enhancing employee retention and productivity, highlighting that companies with strategic onboarding have a 91% retention rate compared to 30% for less strategic programs. He discusses the evolution of training tools from traditional manuals to modern learning management systems and the importance of utilizing brain science to improve long-term retention through engaging content and reinforcement techniques. Breakey advocates for proactive and continuous re-boarding processes to adapt to changing business needs, suggesting that technology plays a vital role in optimizing onboarding and ongoing education.