Unpredictability: According to Musk, one of the biggest problems with AI is that it is unpredictable. 

Even the developers themselves don't always know what the AI is going to do or say, which can lead to unintended consequences.

Bias: Another issue with AI is that it can perpetuate bias and discrimination. 

Because AI is trained on existing data, it can reflect the biases and prejudices that already exist in society.

Lack of empathy: Musk has also expressed concern that AI lacks empathy, which could be a problem as AI becomes more integrated into our daily lives.