双语哈评 |成功与否,取决于基因?!( 七 )

If other, presumably cheaper, methods work better, why study genes in this context?

Belsky: 

We want to understand how genetics shape our lives and what causes some people to be successful and others to

flounder

. The advantage of looking at DNA is that it’s defined at birth and fixed throughout life, so it gives us an anchor>interventions

that will improve social mobility.

如果其他方法更有用,而且成本想必也更低,为什么还要研究基因呢?