However, when dealing with objective reality, I am not exclusively dependent upon my own senses and my own mind.

If I leave the room, I can ask someone else to enter the room and photograph what he finds there. The photographs and his descriptions confirm my own conclusions and knowledge about the existence of the room and its contents. Even in my absence, the objective reality of the room apparently continues to be.

The subjectivist position argues that the only confirmation I am able to obtain from such a photograph are those of my senses in viewing the photograph, which may itself be brought into existence by the presence of my awareness and senses.

However, any number of persons can be brought into the room to photograph, or sketch, or verbally describe it and its contents. In all cases, even where individual recollection might differ slightly due to the individually subjective process of observing the room and its contents, in all those particulars where we are dealing with the objective reality of the room, the descriptions will ultimately converge on, and confirm, the existence of that reality.

When we deal with hallucination and figmentary imaginings, however, such confirmation fails. No two people will hallucinate in precisely the same way. Nor will a camera record hallucinations or figments of the imagination.