# Is the Notion of Time Really Fundamental?

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## Abstract

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## 1. Time and Gravity

## 2. Is the Notion of Time Really Fundamental?

## 3. A Toy-Model

#### 3.1. Description of the Toy-Model

#### 3.2. Emerging the Lorentzian Signature

#### 3.3. Emerging a Diffeomorphisms Invariant Space-Time Dynamics

## 4. Discussion: Dynamical Space-Time from a Timeless Non-Dynamical Space

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**Figure 1.**On the left, the graphite lattice has a preferred slicing, contrary to the diamond lattice on the right [17].

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**MDPI and ACS Style**

Girelli, F.; Liberati, S.; Sindoni, L. Is the Notion of Time Really Fundamental? *Symmetry* **2011**, *3*, 389-401.
https://doi.org/10.3390/sym3030389

**AMA Style**

Girelli F, Liberati S, Sindoni L. Is the Notion of Time Really Fundamental? *Symmetry*. 2011; 3(3):389-401.
https://doi.org/10.3390/sym3030389

**Chicago/Turabian Style**

Girelli, Florian, Stefano Liberati, and Lorenzo Sindoni. 2011. "Is the Notion of Time Really Fundamental?" *Symmetry* 3, no. 3: 389-401.
https://doi.org/10.3390/sym3030389