From Tim Stevenson
The big bang, Michael Brooks says, should have produced matter and antimatter in equal amounts (30 April, p 28). But, lo, there seems to have been at least a small extra proportion of matter produced. I ask: could the equality we predict be near the median of a statistical distribution? If so, might that cure-all hypothesis, the multiverse, come to our aid? We might just happen to live in a universe in which the ratio of matter to antimatter lay at a particular point on a distribution of possibilities.
Prestwood, Buckinghamshire, UK
