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-2. **Richard Feynman (1981)**
+2. **Richard Feynman (1981)** 💻  
    * Proposed the concept of quantum computers as simulators for physical systems.
+ 
+   - **Explanation**: Feynman developed the path integral, an alternative approach to describe quantum mechanics through trajectories.
+   - **Contribution**: Proposed the idea of a quantum computer to simulate quantum phenomena, marking the beginning of quantum computing.
+  
+   * **Formula**: $\( S = \int \mathcal{L} \, dt \)$  
+
   
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