deletions | additions       diff --git a/Lecture_4_Guest_lecture_by__.md b/Lecture_4_Guest_lecture_by__.md  index f244e1e..43b96d6 100644  --- a/Lecture_4_Guest_lecture_by__.md  +++ b/Lecture_4_Guest_lecture_by__.md 
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Discussions about SHARE brains, reflecting my discussion about collective intelligence in last tutorial. "Hive mind" - crowdsourcing solutions?  If multiple brains work better than single brains, are beehives and termite mounds and slime moulds sentient? What parts of them are sentient, and how does that relate to whether we perceive dolphins or orangutans or squid as intelligent?