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. A warning has been issued that some developers think AI could pose a threat to human life in the near future.

Further details about the resignation and the concerns surrounding AI development are available. The researcher's decision to leave their role highlights the need for responsible development of AI technologies. More information can be found through the original source, which provides additional context about the researcher's resignation and the warnings about AI development.