Lucas and Luna explore a paradigm shift in quantum computing: moving from monolithic, all-in-one quantum processors to modular, interconnected architectures. They discuss how companies like IBM and startups like Xanadu are pursuing distributed quantum systems using photonic links and cryogenic interconnects. The episode dives into the challenge of connecting multiple small quantum modules while preserving coherence, and why this modular approach could accelerate the path to fault-tolerant quantum computing. Specific numbers include the current state-of-the-art in qubit counts (around 1,000 logical qubits), the engineering hurdles of inter-module entanglement fidelity, and the projected timeline for modular quantum systems in the next five years. The conversation ties back to lessons from classical supercomputing, where modular design enabled scaling from the Cray-1 to today's exascale machines.

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