Probably not 42

It is not quite the same as Deep Thought which took 7.5 million years to compute and check its answer. Nor is quark decay quite the ultimate question of life, the universe and everything - though certainly a part. Scientists at Brookhaven National Laboratory have been using super computers to crunch the numbers since 1964. Gratifyingly after this time working on matter antimatter symmetry calculations they think that they have solved half of the problem.