doi:10.1007/978-3-319-12328-8_9engPellicer-Lostao, C.López-Ruiz, R.The importance of the strategy in backward orbitsART-2015-89778This work considers reversed evolution in dynamical systems. In particular, asymptotic behavior of chaotic systems, when their orbits evolve backward in time. Reversed dynamics reveals important aspects of the trajectories, such as a new necessary parameter. This is the strategy through which one orbit reaches an original state in the past. As a result, it is found that backward orbits exhibit sensitivity to the strategy. This gives additional evidence about the unpredictability of the past.2015http://zaguan.unizar.es/record/17030910.1007/978-3-319-12328-8_9http://zaguan.unizar.es/record/170309oai:zaguan.unizar.es:170309Springer Proceedings in Mathematics & Statistics 112 (2015), 171-181All rights reservedhttp://www.europeana.eu/rights/rr-f/info:eu-repo/semantics/closedAccess