\nThere have long been hints that innate immunity can last longer in certain circumstances. The most-studied example is the Bacillus Calmette-Guerin tuberculosis vaccine, which is given to some 100 million newborns every year. Epidemiological and clinical studies have shown that it can decrease infant mortality from other infections, suggesting that the cross-protection could last months. But the phenomenon was inconsistent and the mechanism mysterious.
There’s not much to love about big tech these days. So many ills can be laid at its door: social media harms, misinformation, polarisation, mining and misuse of personal data, environmental negligence, tax avoidance, the list goes on. Added to which, Silicon Valley’s leaders seem all too keen to cosy up to the Trump administration, to shower the president with bribes – sorry, gifts – and remain silent about his worsening political overreach. And that’s before we get to the rampant “enshittification”, as the tech writer Cory Doctorow describes it, which means that by design many big tech products have become less useful and more extractive than they were when we originally signed up to them.
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