doi:10.3390/sym10070231engCarmona, J.M.Cortés, J.L.Relancio, J.J.Observers and their notion of spacetime beyond special relativityART-2018-107515It is plausible that quantum gravity effects may lead us to a description of Nature beyond the framework of special relativity. In this case, either the relativity principle is broken or it is maintained. These two scenarios (a violation or a deformation of special relativity) are very different, both conceptually and phenomenologically. We discuss some of their implications on the description of events for different observers and the notion of spacetime.2018http://zaguan.unizar.es/record/7498210.3390/sym10070231http://zaguan.unizar.es/record/74982oai:zaguan.unizar.es:74982info:eu-repo/grantAgreement/ES/DGIID-DGA/2015-E24-2info:eu-repo/grantAgreement/ES/MINECO/FPA2015-65745-PSymmetry (Basel) 10, 7 (2018), 231 [11 pp]byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess