I often watch the humanity class to use = in the internet. I saw the fourth industrial revolution.
There introduce = They introduced there about AR, VR and translator.
In the near future, I think the people doesn’t need to move attend at seminar to attend = go somewhere to attend a seminar.
They are just at = can just watch on their house through AR & VR to attend. 
They don't neet to constraint the space = elsewhere.
And then it's too easy to communicate an internationally.
Because the people use a translator to communicate. So they don't need to study another languge.