Expected Gain / Reduction
-0.65 SD
Disease risk standard deviation
Max Selection Shift
+1.12 SD
Theoretical upper limit ($N=\text{max}$)
Coercion Index
0% (Voluntary)
Individual parental autonomy
Historic Coercive Eugenics (20th C.)
- State-mandated sterilization & reproductive restrictions
- Homogenizing national population target
- Suppression of individual reproductive freedom
- Zero parental choice or consent
Modern Embryo Selection (PGT-P)
- Voluntary parental choice within private IVF
- Diverse individual family preferences (heterogeneous)
- Primary focus on severe disease risk reduction
- Restricted by sibling trait variance limits
Simulation Analysis Output
Selected 5 embryos with variance $R^2 = $ 15% under Modern Parental Choice framework. Average population shift yields a net expected change of -0.65 SD.