Observation causes sensory data to enter the brain. This raw data is then interpreted and organized, based on underling premises, to create a picture of reality that consciousness sees.
This picture is not necessarily reality, but is only an interpretation of reality. This interpretation of reality is what this discussion is really all about. The interpretation does not exist unless we observe. If it is out of sight it is also out of mind. If there is no data entering the brain, the brain is not assembling an interpretation, so it appears not to exist.
For example, below is picture of a blue ball. If we only use only our eyes, to observe, it looks 3-D based on how the brain interprets the input data. If we l also use the sense of touch, to feel its edges, reality changes to 2-D. What we perceive as reality, is not the same as reality.
At one time humans thought the earth was flat. If we believe Bohr, then the earth was flat, at one time, since this is what was observed. Somehow, when it was discovered the earth was more spherical, like magic, the earth went from 2-D to 3-D almost overnight. The earth did not change. What changed was how the brain perceived the earth; created its own reality. Bohr was unconsciously projecting the uncertainty assumed within quantum observation as being due to a consciousness assembly variable; interpretation.
In politics, two sets of people; two different sides of the issue, can look at the same observational data and form too opposite interpretations. Reality does not change based on what one group says, unless that group can come to power and force their interpretation onto others. Brain washing plays a role in terms of group reality. Einstein believed that reality existed apart from conscious interpretation. It is up to humans to upgrade the mind until the two can overlap.