# Stars and Neurons Need Different Theories by Gino Segre > “Our galaxy has a hundred billion stars and our brain has a hundred billion neurons. Understanding our galaxy and our brain are great challenges, but two different theories are required.” > **— Gino Segre**, *2004 Edge Annual Question, response passage* ## Sources and Context - **Direct publication and locator:** [Segre’s Law — Gino Segre](https://www.edge.org/response-detail/10381) — 2004 Annual Question response, contiguous sentence(s) within the representative extract. - **Exact original excerpt:** “One has to keep looking for a theory that will explain the numbers. Our galaxy has a hundred billion stars and our brain has a hundred billion neurons. Understanding our galaxy and our brain are great challenges, but two different theories are required.” - **Context and editing:** The poster starts with the numerical comparison that supplies the referent omitted from the preceding sentence “explain the numbers”; these two sentences are contiguous. No editorial words were inserted. - **Local Edge archive:** [[research/Edge 2004 Full Quotation Curation|Edge 2004 Full Quotation Curation]], response EDGE2004-101. ## Related Articles and Collections - **Collection:** [[collections/Edge|Edge]] - **Collection:** [[collections/Consciousness Continuity|Consciousness Continuity]] - **Article:** [[articles/Information Persistence in Complex Systems|Information Persistence in Complex Systems]] - **Article:** [[articles/The Greatest Transformation in Human History|The Greatest Transformation in Human History]] - **Wiki map:** [[wiki/Science Ecosystem|Science Ecosystem]] ## Related Topics - [[wiki/Science Ecosystem|Science Ecosystem]] ## Share on Social Media ``` “Our galaxy has a hundred billion stars and our brain has a hundred billion neurons. Understanding our galaxy and our brain are great challenges, but two different theories are required.” — Gino Segre, 2004 Edge Annual Question, response passage https://bryantmcgill.com/simple-reminders-gino-segre-stars-neurons-need-different-theories ```