@article{theelusivepresenthiddenpastandfuture,
  title = {The Elusive Present: Hidden Past and Future Dependency and Why We Build Models},
  author = {Pooneh M. Ara and Ryan G. James and James P. Crutchfield},
  year = {2015},
  eprint = {1507.00672},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1507.00672v1},
}