While I don't want to downplay the effect of genetics on personality, Alice's thwarting by people's choices mean that she wouldn't be able to see far enough ahead to give any better information than "spits up a lot" and "hey, this one sleeps through the night pretty early".
If however, she was given lots of (non hybrid) candidate embryos to work with and knowledge of their gene sequences, then she might be able to efficiently note "hey, the majority of those with this particular sequence seem destined to end up with such and such disease", etc...
Alternately, gives a convenient way to help test genetic modifications (check for obvious disastrous results) in a slightly more ethical way that, well, giving birth to the enhanced kid and hoping for the best.
In the vein of the Harry Potter and the Methods of Rationality discussion threads this is the place to discuss anything relating to Alicorn's Twilight fanfic Luminosity. The fanfic is also archived on Alicorn's own website <strike>(warning: white text on black background)</strike>.
Previous discussion is hidden so deeply within the first Methods of Rationality thread that it's difficult to find even if you already know it exists.
Similar to how Eliezer's fanfic popularizes material from his sequences Alicorn is using the insights from her Luminosity sequence.
Spoilers for the fanfic itself as well as the original novels need and should not be hidden, but spoiler protection still applies for any other works of fiction, except for Harry Potter and the Methods of Rationality chapters more than a week old so we can freely discuss similarities and differences.
EDIT: Post-ginormous-spoiler discussion should go to the second thread. (If you have any doubt on whether you have reached the spoiler in question you have not.)