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Quantum effects in chemical reactions can be simulated on high-performance classical computers, but the results are accurate only for small systems. Researchers hope that future generations of quantum computers will be able to model hundreds or thousands of molecules and thus could, for example, accelerate R&D of pharmaceuticals. See the article by Klaus Liegener, Oliver Morsch, and Guido Pupillo on page 34 for more on how quantum computing could improve chemical modeling. (Image by Freddie Pagani.)