This book takes us on “a whistle-stop tour through some of the most exciting scientific studies”. The science and technology are still evolving but researchers have already used fMRI scans, analysed by a computer, to reconstruct a film clip watched by subjects. It was “blurry and not very detailed” but still remarkable. Other experiments include attempts to read dreams, and to detect social biases such as racism and sexism; in one study, researchers achieved a 100% success rate in detecting lies. However they also showed that it was relatively easy to trick the technology: “even the most accurate computer model can be fooled”.