These concepts and ideas can be collective and individual, meaning that the human world consists of billions of 'sub-worlds' which are all realities on their own.

这些概念和想法可以是集体的，也可以是个人的，这意味着人类世界由数十亿个“子世界”组成，这些子世界都是独立的现实。

On the other hand, the shortage of highly-skilled talented individuals means it is difficult for employers to fill job vacancies, especially those that are technical in nature and require experience.

另一方面，高技能人才的短缺意味着雇主很难填补职位空缺，特别是那些技术性的和需要经验的职位。

So, you have to ask the question now, to what extent does the high heritability in individuals mean that there has to be a heritable explanation across groups?

因此， 现在必须要问这个问题，个体中高遗传性在多大程度上意味着必须在各个群体中有一种遗传解释呢？