Chronotourism
From Achron Wiki
Gaining advantage from making units visit a particular time.
Under the model that research works in Achron a unit chronoporting from researched time to unresearched time will not be able to use the research item. This is explained as not having infrastructure available. However under a model which such a unit could use the research item with addition of every unit gaining the advantage from research as it completes chronotourism becomes an issue similiar to Chronocloning