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Optoelectronics: What's the Temperature?
We live in 300 Kelvin, so we want our technologies to operate there too. The temperature of the cosmic microwave background is about 2.7 Kelvin. In the expanses, you don't have to get that far away from the earth in order to drop down to not far from 4K. So what you're saying is the aliens that live at the edge of the observable universe are using superconductive material for their computation. We can get to that.