Those interested in quantum mechanics, and that find the 'textbook interpretation' (the copenhagen interpration) or the "many worlds/everett" interpration frustratingly unintuitive, may find the decoherent/consistent histories interpretation interesting.

That interpretation provides an intuitive way to reason about quantum mechanics and therefore makes it much easier to learn how quantum mechanics works, without getting distracted by paradoxes and philosophical difficulties.

To learn more,

Read a paper by one of decoherent histories' main proponents http://arxiv.org/abs/quant-ph/0612065

See if you can understand quantum decoherence: http://en.wikipedia.org/wiki/Quantum_decoherence

Read the FAQ: http://quantum.phys.cmu.edu/CHS/quest.html

Dive into a textbook explaining quantum physics in decoherent histories interpration (by the same proponent as above) http://quantum.phys.cmu.edu/CQT/index.html

And of course its Wikipedia page may not be overlooked: http://en.wikipedia.org/wiki/Consistent_histories