Never in the course of human history have we had a greater opportunity to make our people healthier and wiser, to protect our planet from decay and abuse, to reap the benefits of free markets without abandoning the social contract and its concern for the common good.

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As the secure cocoon of the workplace continues to decay, do we have the stuff to create our own destiny, to become entrepreneurs, free agents, innovators?

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Each has its own decay pattern and as they decay, they become other elements that move to other places in our bodies and can be toxic as well as radioactive.

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Our best understanding of physics so far, called the Standard Model, suggests that the complicated cascades of decay of D-mesons into other particles should be very nearly the same - within less than 0.1% - as a similar chain of antimatter decays.

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