Complex sentence: There are people who already fight for Viternian Age, the viternitists of the Viternity Movement, because some sources say it is already recreated in lab since the days of Tree of Life, or that some analogue forms has been created or discovered in nature.
Split into simpler sentences: There are people who fight for Viternian Age, the viternitists of the Viternity Movement. Some sources say it is already recreated in lab since the days of Tree of Life, or that some analogue forms has been created or discovered in nature.