Stormiz
The Dao is the Way and the Way is the Dao
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It's a skull that contain all possible genetic material of the kryptonians.They stopped making babies the natural way so they used it to artificially produce babies in incubation chambers. They select a profile "scientist", "soldier" etc and the babies has it's life conditioned like this.
As a French, I have to say that's quite a low blow but well you hit home dear author