Where genetics was once capable of pinning down only rare mutations with a
catastrophic impact, it is now tracing variants with smaller effects that
are much more widespread. You might call it the democratisation of the
genome.
“What we are going to get out of this in the end is not genetic engineering,
but environmental engineering,” Dr Plomin said. “A lot is going to be about
changing behaviour, about education. It’s not always going to be: you’ve got
this genetic problem and here’s a pill. Most genetic effects are going to be
too small for that.”
