Sentience and the science-policy nexus: replies to Wandrey and Halina, and Bayne

The edge of sentience is a book about what we should do when a decision problem forces us to draw a pragmatic line between the sentient and the non‐sentient. The commentaries from Wandrey and Halina and from Bayne analyse both my precautionary framework and my claims about specific cases. My responses start with the case of large language models (LLMs), zoom out to general issues about the science–policy relationship, then zoom in again on the case of fetuses.