Firstly, Gates is worried that AI could exacerbate social inequality. As AI technology advances, many low-skilled jobs are likely to be automated, leading to significant job losses. This not only affects individuals' lives but can also lead to social unrest. He believes that governments and society need to work together to provide retraining and educational opportunities for those affected, helping them adapt to the new economic landscape.

Secondly, Gates is concerned about the safety and ethical issues surrounding AI. The complexity and autonomy of AI systems make their behavior difficult to predict, especially in high-risk decision-making scenarios. For example, how autonomous vehicles make decisions in emergencies or the risk of misdiagnosis in medical AI applications. These issues not only impact personal safety but also broader ethical and social responsibilities. Therefore, establishing strict regulatory standards and technical guidelines is crucial.

Ultimately, Gates' concerns remind us that technological development must go hand in hand with ethical and social responsibility to fully realize its potential.