Mais pourquoi Nancy Kress écrit autant sur la génétique ?

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Nancy Kress, qui vient de sortir Après la chute aux éditions Actusf, explique sur le site SFSigfnal pourquoi elle parle autant de génétique dans ses romans (Les Hommes Dénaturés, L'une rêve l'autre pas...). 

Pour elle c'est un domaine qui touche tout le vivant et donc les humains mais aussi la société. C'est pour ça qu'elle en parle dans ses récits de science fiction. 
 
Extrait : 
And it will keep on arriving, which is what makes genetic engineering such a rich lode to mine for fiction. Science fiction-especially hard SF-is a thought experiment, a kind of mental rehearsal for the future: If humans can do this, what might happen? Would we do it? Should we do it? With what consequences, and to whom? Genetics brings in questions of not only science but of ethics, power, money, and love.

Nowhere is this more evident than when the engineering concerns not bacteria, crops, or animals, but human beings. And yet this, too, is sneaking up on us. I remember the furor when Louise Brown, the first child conceived in a petri dish through in vitro fertilization, was born in 1978. The press exploded into accusations of “playing God” and “creating monsters.” Today there are over 200,000 people in the United States alone conceived by in vitro fertilization, and nobody can tell who they are (you may be one of them-are you positive you are not?) That was the first, very modest step toward manipulating our genome.

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