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The scenarios that we investigate in this study are really at the extreme optimistic end of what could be done without negative emissions or killing off power plants or cars before their time, while the solution we propose is technically possible, it still doesn't look particularly likely. However, I would claim that mapping it out is a good starting point, and consistent with the definition of an infrastructure commitment. It would be interesting to see if, or how, some of The Results change with perhaps more real-world assumptions.