Concerns about AI development have led to a researcher's resignation. The individual is leaving their position due to worries that companies are not handling AI development in a responsible manner. Some developers think AI could pose a threat to human life in the near future.

Further details about the resignation and concerns are available. The researcher's decision to leave is based on their perception of the industry's approach to AI development. More information can be found through the original source, which provides additional context about the researcher's resignation and the concerns surrounding AI development.