[DeFault User]

Nothing exists without a conscious observer. Existence of the universe would require a conscious entity to bring it into existence.

To my knowledge, this theory was first advanced by Bishop Berkeley in the early 18th century. I asked my philosophy professor if he could disprove it. (He rapidly changed the subject.)

Essentially, it removes all disputes on the conflicts between mind and matter.

[palmer]

Nothing exists without a conscious observer

That would mean nothing exists.