Tech billionaire Elon Musk has expanded his already large family, as sources confirm he and Neuralink executive Shivon Zilis have welcomed their fourth child together. This new addition brings Musk’s total number of children to 14, further reflecting his strong views on the importance of boosting global population.

Musk, CEO of Tesla, SpaceX, and Neuralink, has repeatedly voiced concerns about declining birth rates, describing them as a significant threat to civilization’s future. His growing family appears to mirror this personal mission, and fatherhood remains a central part of his life. Musk has children with different partners and continues to be an advocate for population sustainability through example.

Shivon Zilis, a senior executive at Neuralink, has worked alongside Musk for years. Known for her expertise in artificial intelligence and neuroscience, Zilis first made headlines in 2021 when she and Musk welcomed twins. Their growing family has continued to attract public and media attention.

Musk’s actions align with his broader vision for humanity’s long-term survival, including goals like space colonization and societal resilience. He’s repeatedly emphasized that countries with falling birth rates risk economic and cultural decline. By having a large family, Musk says he’s not just talking about the issue—he’s living his beliefs.

Public reaction to the news has been mixed. Admirers praise Musk for standing by his ideals, seeing him as a thought leader who acts on his convictions. Others question how involved he can truly be as a parent while managing several major companies.

Regardless of the opinions, one thing is certain: Elon Musk is building a legacy not just through rockets and AI, but also through a new generation of Musks—children who may one day continue his ambitious vision for the future.