# L’universo è una cipolla cosmica:tra galassie, quantistica e multiverso | Riccardo Azzali | TEDxBari

Source: https://www.youtube.com/watch?v=e71B4ExdYoA
Recap page: https://rapidrecap.app/video/e71B4ExdYoA
Generated: 2025-12-04T18:09:26.839+00:00

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## Quick Overview

Riccardo Azzali, a theoretical physicist, uses the analogy of a cosmic onion, where each layer represents different scales of reality—from the Plank length up to the observable universe—to explain that the fundamental constituents of matter and consciousness are deeply interconnected, suggesting that both are built from the same fundamental void, which challenges conventional scientific assumptions about separateness.

**Key Points:**
- Riccardo Azzali, a theoretical physicist, presents the concept of reality as a "cosmic onion" with layers ranging from the Plank length (10^-35 meters) up to the size of the observable universe (94 billion light-years in diameter).
- The speaker highlights that the 99.999...% void in both atoms (electrons orbiting a nucleus) and the universe (galaxies scattered in space) is a profound structural similarity.
- He argues that the fundamental constituents of matter (atoms, molecules) and consciousness are both derived from this fundamental void, challenging the idea of inherent separation between the physical and the mental.
- Azzali relates the structure of the universe (galaxies, stars) to the structure within a cell (molecules, atoms), emphasizing that complex structures emerge from simple rules.
- He introduces the concept of the universe having a diameter of 94 billion light-years and the Plank length being 1.6 x 10^-35 meters to illustrate the vast scale differences.
- The talk suggests that the laws governing the microscopic quantum world might also govern the macroscopic world and even consciousness, implying a unified reality.
- The speaker finds the analogy of the universe being almost entirely empty (99.999...% void) to be the most striking connection between the cosmic and the subatomic.

![Screenshot at 00:13: Riccardo Azzali introduces himself on the TEDx Bari stage, setting the context for his discussion on physics and philosophy.](https://ss.rapidrecap.app/screens/e71B4ExdYoA/00-00-13.png)

**Context:** Riccardo Azzali delivers a TEDx talk titled "L’universo è una cipolla cosmica" (The universe is a cosmic onion) at TEDxBari, exploring the parallels between the structure of the physical universe and the structure of matter at the subatomic level. Azzali, identifying himself as a theoretical physicist, uses this extended analogy to bridge the gap between the infinitesimally small (quantum mechanics) and the overwhelmingly large (cosmology), suggesting a unified underlying principle for existence, consciousness, and physical laws.

## Detailed Analysis

Riccardo Azzali begins his talk by stating his background as a theoretical physicist who enjoys searching for answers to big philosophical questions using science. He introduces the core concept: reality as a "cosmic onion," where different scales are nested within each other. He illustrates the scale contrast by citing the diameter of the observable universe (94 billion light-years) versus the Plank length (1.6 x 10^-35 meters). Azzali points out a profound similarity across these scales: the vast majority of both is empty space. In the atom, electrons occupy a tiny fraction of the space around the nucleus (99.999...% void), and similarly, the universe is mostly empty space between galaxies. He further compares this structure to the organization within cells, which are complex structures built from simpler components. Azzali argues that the laws governing the quantum world—like the way particles interact—also seem to govern the larger structures, suggesting a single, unified structure for reality. He specifically mentions that the rules governing the quantum realm (e.g., the constant of Planck) seem to dictate behavior even at the scale of galaxies. The most shocking realization for him is that both the cosmos and the matter comprising us are overwhelmingly void, leading to the conclusion that consciousness, too, might reflect this fundamental structure, where the laws of physics and our perception of reality are intrinsically linked by this underlying emptiness.

### Introduction and Scale Comparison

- Riccardo Azzali identifies as a theoretical physicist
- He introduces the 'cosmic onion' analogy to link micro and macro scales
- He contrasts the universe's 94 billion light-year diameter with the Plank length (1.6 x 10^-35 meters)

### The Principle of Void

- Azzali emphasizes that atoms and the universe are mostly empty space (99.999...% void)
- This structural similarity suggests that matter and consciousness might share a common origin in this void
- He finds this similarity, especially regarding the void, fascinating and unsettling

### Emergent Complexity

- He explains that complex structures like cells and organisms emerge from simpler rules governing atoms and molecules
- This mirrors how galaxies and stars form structures in the cosmos
- He suggests that concepts like space and time lose meaning when applied across these vastly different scales

### The Role of Physics and Philosophy

- Azzali suggests that the rules governing quantum mechanics might also govern the larger universe and, potentially, consciousness
- He notes that AI and other modern technologies utilize quantum mechanisms
- He concludes by questioning if our existence itself is a reflection of this deep, unified structure.

![Screenshot at 00:06: The screen displays the TEDx Bari logo and lists event sponsors, including itsmobilità, San Marzano, and others.](https://ss.rapidrecap.app/screens/e71B4ExdYoA/00-00-06.png)
![Screenshot at 00:13: Riccardo Azzali is introduced on stage with his name and event details displayed on a lower third graphic.](https://ss.rapidrecap.app/screens/e71B4ExdYoA/00-00-13.png)
![Screenshot at 01:08: A wide shot shows Azzali on the red circular stage marker with the large TEDx Bari logo behind him.](https://ss.rapidrecap.app/screens/e71B4ExdYoA/00-01-08.png)
![Screenshot at 02:08: A close-up shot of Azzali emphasizes his gesture while discussing the concept of the universe as a large onion.](https://ss.rapidrecap.app/screens/e71B4ExdYoA/00-02-08.png)
![Screenshot at 03:43: Azzali uses his fingers to indicate the extremely small Plank length value \(0.00...05 meters\).](https://ss.rapidrecap.app/screens/e71B4ExdYoA/00-03-43.png)