where=in which, 定语从句修饰future。future在这里不仅仅是时间概念，也带有未来世界的意思。where的先行词不仅仅是具体地点名词，也可以是抽象的situation，case等，偶尔也可以是时间名词。例如：

We're living in a time where the young people are seeing a government that's not functioning.

But wouldn't you rather be living through a time where something positive was going on, when you're working on problems? 

There was a time where there were allegations and the " Daily News " and a lot of publications went with them that, you know, allegedly, he took trips to the Dominican Republic and had sexual relationships with underage hookers.

But no one needed to be afraid of a future where 17 million' dynamic' East Germans were united with 62 million West Germans. 

So can we expect a glorious future where dreams and technology merge or are the implications more sinister?