It is impossible to see 'NOW' everywhere.

   Because the speed of light seems to have an upper limit, it
   takes time for the light to get to us. Therefore, we always see
   things as they were in the past, geting furthur and furthur back
   in time the furthur away we look. But what does it look like,
   ''NOW'' - TODAY''? We don't know. It is impossible to see
   everyting how it is ''NOW''. That's why a lot of what we know
   about the Universe (its size, etc) can't be right because we're
   always looking through a rear-view mirror - we can't see how it
   is at the present moment. It's still worth trying, but that's
   why our numbers keep changing. the Universe already expanded -
   it's just taking time for us to SEE IT.

   What do you think?

   (idea is my own - @116220525110856958463