Whoever is doing PR for Big Science is playing a blinder this summer. We have seen announcements around room temperature superconductivity, the opening of the first nuclear fission plant in the US in 30 years, and a replication of nuclear fusion. In this case, researchers shot the world’s biggest laser at a cup of water to produce enough energy to power a household iron for an hour. No joke, the whole thing cost billions, but replicable fusion reactions at scale are the key to nearly unlimited energy with no emissions. So, if it cost 10 per cent of US GDP,…