[edwin hubble]

yes,
The effect of the observer changing reality...
This brings up one of the huge ironies of quantum mechanics:
The folks living on those distant worlds probably believe that their own history is quite real and fixed, and not subject to sudden changes brought about by our observations.

[blam]

"The folks living on those distant worlds probably believe that their own history is quite real and fixed, and not subject to sudden changes brought about by our observations."

....as we are in believing that their observations aren't having an effect on us?