Yuval Boger interviews Christian Weedbrook, founder and CEO of Xanadu. They discuss Xanadu’s photonic approach to gate-based quantum computing, the advantages of room-temperature operation, and the company’s plan to scale through optical networking. Christian also describes PennyLane, photonic error correction, customer engagements, and Xanadu’s target of building a 500-logical-qubit system by 2029–2030. The conversation also touches on partnerships, manufacturing, likely early applications in chemistry and materials, and much more.