public void OnTimeTravel()
{
string lastReality = CurrentReality;
// going present, or going to future according to water taps
CurrentReality = (CurrentReality != "Present") ? "Present" : RealitySceneName[GetFutureRealityIndex()];
SceneManager.LoadSceneAsync(CurrentReality, LoadSceneMode.Additive);
SceneManager.UnloadScene(lastReality);
PersistenceController.SaveDataToDisk();
}