but it shows up in half a second difference.

而且只要半秒钟就可以看出差异
Who cares? Well, there's two answers to this.

但谁在乎呢这里有两个回答
One answer is there are times in your life where half a second can matter a lot.

一个回答是在你人生中会发生很多半秒钟影响重大的时候
So, studies with police officers using reaction time

用短时选择的反应时研究
in split-second choices on who to shoot

警察会对谁开枪
find that your stereotypical attitudes play a huge role in

发现刻板态度会产生很大的影响
who you're likely to shoot

当他们手里拿着不明物体的时候
when they're holding an object in their hand that's unclear.

你会倾向于向谁开枪
Also, more generally,

更普遍的是
it could be that these implicit attitudes play a role in judgment calls.

这些內隐态度会影响你的判断
In cases where you have a hard decision to make, you know you're not racist.

比如在你需要做艰难决定时你知道你不是种族主义者
You have no explicit racist attitudes, honestly you really don't,

你没有外显的种族主义态度老实说你真的没有