In giving us a history of attempts to explain our thinking abilities, Tom Griffiths demonstrates an excellent ability to pitch information just right for the informed general reader. We begin with Aristotelian logic and the way Boole and others transformed it into a kind of arithmetic before a first introduction of computing and theories of language. Griffiths covers a surprising amount of ground - we don't just get, for instance, the obvious figures of Turing, von Neumann and Shannon, but the interaction between the computing pioneers and those concerned with trying to understand the way we think - for example in the work of Jerome Bruner, of whom I confess I'd never heard. This would prove to be the case with a whole host of people who have made interesting contributions to the understanding of human thought processes. Sometimes their theories were contradictory - this isn't an easy field to successfully observe - but always they were interesting. But for me, at least, ...
There are plenty of novels featuring time travel out there, but this is one of the more interesting ones. In a 2040s lab, owned by a tech billionaire, a pair of brilliant scientists have discovered a kind of time travel - but it's different from the usual variety. There's no physical travel - the person simply experiences a short passage of time from their past. But it's not a memory: the device sends their mind into the ether and somehow (thanks to the wonders of negative energy) they are 'really' present for the 90 seconds limit of the visit. However, there's no control over the destination time - Beth, the central character - is intensely focused on finding some way to control this, left with dwindling resources and without the help of her husband who was killed in a car accident. So far, a little bit 'meh' as time travel goes - it might be more real than a memory, but the experience appears to be the same as a perfect memory (that third rule is '...