Irrespective of the length- and time-scales, the interactions between an object and its surroundings shape the potential energy surface of the system, which in turn determines the type of motion the object exhibits. The search to understand the dynamics of a system, that is to characterise the type of motion and the origin of the interactions that give rise to said behaviour, has brought disciplines as dissimilar as astrophysics and cell biology together. Although the dynamics of a system are most commonly characterised at the ensemble level, the presence of local heterogeneity and thus the likelihood for different interactions pose the scenario that two identical objects may behave very differently.
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