Can we learn everything from nothingness? What is our Universe made of, how does it evolve? Sometimes, by looking away from the flood of information, we can get a novel, better perspective. The answer to these ambitious questions may come from the largest, darkest, quietest regions in the Universe: cosmic voids. Cosmologist, researcher, professor and team leader Alice Pisani brings the spotlight on why studying the under-dense regions in the wonderful maps of galaxies built by modern surveys will address the most challenging mysteries of modern cosmology.Alice Pisani is an Italian cosmologist and principal investigator of the ERC (European Research Council) grant COSMOBEST. After working as a researcher and professor at Princeton University, at the Flatiron Institute and at the Cooper Union (US), she has, since 2024, joined the Center for Particle Physics in Marseille (France) with a CNRS position and obtained a Chaire d'Excellence at Aix-Marseille-University. Alice is a pioneer in the extraction of cosmological constraints from cosmic voids observed by modern surveys and she leads research from modern large-scale structure data sets.This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
More from TED
- 7:29Leading the Future of AI Through Collaboration | Sydney Lai | TEDxUPV WomenSydney Lai is not your typical technologist—but then again, the future isn't typical either. Growing up between cultures and disciplines, Sydney has always lived in the in-between: East and West, theory and execution, philosophy and product. At a time when AI development is being driven by market demand and individual optimization, Sydney found herself asking a different question: What happens when we build technology for us, not just me? Sydney Lai is an accomplished engineering leader with expertise in infrastructure tooling and developer ecosystems. She's lead engineering and adoption for developer frameworks, reaching over 2M+ developers. With 8 years in decentralized data development, she led technical diligence on cross-infrastructure vulnerabilities for 74 companies, and has invested in startups as a VC across 5 different funds during her career. Embracing emerging technology, Sydney led and developed open-source mission operations software for the aerospace industry, worked on robotic process automation tooling at scale, and spent years teaching developers prompt and AI tooling development. Sydney has been recognized as an LGBT Technology Leader by The White House Office of Science and Technology Policy. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
- 22:12FROM A SPARK TO A MOVEMENT- How Simple Ideas grow into a Revolution | ANAND G BHATNAGAR | TEDxCAIAS“Prayers should be the steering wheel of life, not the spare wheel” A lifelong student, Enabling organizational development through coaching and mentoring, Performance and productivity coach, TEDx speaker, and facilitator. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
- 6:34A Story of the Gifted | Nayla Arsya Ramadhani | TEDxPribadi School DepokJust like a story, most people experience 3 major stages: setup, conflict, and redemption. However, there are some people that are expected not to experience one of the stages—the conflict. These are the gifted, the ones expected to never fall. This is the speaker’s story, a gifted who lives in pressure to be the perfect character in everyone’s eyes. Through this speech, she shares how mindset can be changed: from wanting to be a flawless character, to embracing the journey of becoming a unique character, not only shaped by expectation. Pribadi Depok's Student of the Year 2025, a 12th grader known for her sharp critical thinking and outstanding academic performance. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
- 6:48Creativity Piece by Piece | Deltabara Ardionararya Robbani | TEDxPribadi School DepokA personal story about Legos as an analogy for the declining quality of creativity in life. An 11th grader with visionary perspectives, international insight, and extensive public speaking experience. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
- 5:08We Were All Weak Once | Ghania Cendekia | TEDxPribadi School DepokWe all start life as the weakest person on Earth, a newborn unable to speak, walk, or even feed ourselves. In this talk, the speaker shares her personal journey of being a 5-year-old Indonesian child in a bilingual school without being able to utter a single word in English. Isolated and misunderstood, she learned that true strength is built through vulnerability, perseverance, and the courage to grow. This is a story of finding your voice when no one understands you and becoming stronger than you have ever imagined. A 5th grader with remarkable achievements in international competitions. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
- 6:50The Silent Struggle | Danish Riza Faeyza | TEDxPribadi School DepokThis is a talk about Dwayne “The Rock” Johnson’s story that reveals how depression affects anyone, even the strongest. His journey shows the importance of opening up, seeking support, and recognizing the complex causes behind depression. A 5th-grade basketball athlete with a strong, critical mind and huge interest in English language. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
