In this context, the concept of them being "near" or "far" from our universe loses any meaning.
"The concept of a construction brigade lost its flair."
Finally, the concept of day and year and even hour lose all meaning.
If everything is interpretation then the concept loses its point.
In such cases, the concept of direction loses its ordinary meaning, and is given an abstract definition.
There were times when his father seemed unable to accept that the whole concept of offspring had lost its archaic significance.
This concept loses any democratic value when forced only upon students who need Federal assistance to attend college.
If you fear that concept has lost its place in our world, check out his church.
The traditional concept of military security has lost its meaning in the Baltic region as elsewhere.
The bad news is that our classical "intuitive" concepts like "size" lose their meaning.