It's all related to my own private life, only these tangled unclear things can be controlled, the production process is random, unconscientious.

和自己的私密关联着，也只有那些纠缠不爽的东西可以一直把握住，制作过程漫不经心。

For laid-back people, their lateness is a part of their personality, they are aware of it and presumably not worried about appearing unconscientious.

对于懒散的人来说，迟到只是性格的一部分使然，他们了解这一点并且并不为此焦虑。

It appears likely that conscientious and unconscientious people have different levels of certain chemicals in their brains.

看来可能是有责任心和没有责任心的人相比，他们的大脑某些化学物质的水平不同。