The list is presumably a place to discuss issues that are specific to women’s experience working on Google Brain. “And allies” indicates it’s not exclusive, and

The list is presumably a place to discuss issues that are specific to women’s experience working on Google Brain. “And allies” indicates it’s not exclusive, and other folks are welcome to contribute to the discussion. The reason there’s no “Google Brain Men and Allies” is because “men’s experience” is the default around which every other mailing list likely focuses.