I feel like Rascals is probably somewhat problematic, too.
This is actually one of my favorite TNG episodes. Therefore, I try not to think about the science/pseudo-science involved.
David Birkin was one of those actors who played two very different characters in TNG. He played "Uncle" Renee in "Family" (season 4) then returned as Young Captain Picard in "Rascals" two seasons later.
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