A groundbreaking team at Caltech has unveiled an all-optical computer capable of reaching a clock speed surpassing 100 GHz, promising to revolutionize the real-time data processing industry. Leveraging an end-to-end all-optical recurrent neural network, this computer performs computations entirely within the optical domain, transcending the constraints of traditional electronic operations. At its heart lies the optical implementation of a recurrent neural network, employing laser pulses for data processing and utilizing optical cavities for both storage and computation. This innovative design allows the computer to execute tasks such as signal classification, time-series prediction, and image generation with unparalleled speed and efficiency. The research team aims to integrate this technology into a compact, scalable system, leveraging advanced materials to further enhance its capabilities.