Originally Posted by Max Power
If you are consciousness, then something can only exist if you (consciousness) are aware of it, to observe it is to be aware of it, so if you're not there to observe it, it's not in awareness and therefore doesn't exist.
I’m conscious of my awareness and I subjectively interpret my surroundings (an objective reality) with my faculties. When I observe an object, an event, etc – I interpret it based on a number of factors (my beliefs, feelings, prior experience, etc).
My ability to observe something has nothing to do with an existence of an objective reality. Right now, I cannot observe my best friend, because he is in a different location, but he exists regardless of my current ability to observe him.