The so called ``hard problem of consciousness'' arises when we attempt to understand (describe in scientific terms) how consciousness arises from the brain's activity. If a scientist, say Bob, inspects the brain activity of somebody else, say Alice, then Alice's brain and its functioning is in fact represented in Bob's brain, that is in Bob's consciousness. Let us repeat: Alice brain is represented in Bob's consciousness. From Bob's perspective, everything, including Alice and her brain, is represented in his consciousness. The outside world, including Alice, is like being painted in Bob's consciousness. When inspecting, for instance by monitoring the functioning of Alice's brain, Bob tries to figure out how Alice perceives the world, how she is conscious about the world around her. From Bob's perspective this is just like a picture within picture. However hard Bob tries to understand Alice's consciousness and her perception of the outer world, this is just a picture represented (``painted'') in Alice's brain, which in turn is a picture in Bob's consciousness.

We see that there are different levels of representation. Relative to me, on the highest level there is a representation, a ``picture'', of the world as perceived by consciousness. Within such the highest level ``picture'' there are lower level ``pictures'' associated with other observers. If we do not take this into account an do not distinguish between different levels of representation, then we have the ``hard problem of consciousness''. The problem is in our failure to recognize that lower level representation of the world (a ``picture'') within a third person's brain under our scientific investigation cannot be identified with the higher level of representation (associated with the experimenter’s “consciousness”). And the experimenter’s “consciousness”, is just a representation (a picture) in my consciousness.

The highest level of representation of the experienced world is associated with consciousness. On the other hand, the world is described by a wave function. This means that there is close relationship between consciousness and wave function. The lower lever representation of the world in another person's brain is not consciousness, and if we wish to understand how consciousness can arise in that person's brain we have ``the hard problem of consciousness''. Consciousness and the associated wave function are the highest level concepts, and cannot be derived from the lower level concepts.
Solipsism is avoided by postulating that wave function (consciousness) can be localized in any brain (either within a particular Everett's world or somewhere else in the multiverse). Thus, I could have been at the place of another person’. Namely, wave function is a mathematical object whose evolution is determined by its initial value, which can be either such, or others. A wave function can be associated with a universe in which the ``I’’ (“me feeling”) is in Bob’s brain, seeing Alice as a representation (a ``picture’’) in his brain. Or alternatively, a wave function can be associated with a universe, such that the ``I’’ is in Alice’s brain seeing Bob as a representation (a ``picture’’) in her brain. In other words, the wave function of the universe can be localized in or associated with Bob’s brain, or it can be localized in Alice’s brain. Other possible forms of wave function can exist in principle, for instance, a wave function not sharply localized in one’s particular brain , or within one particular Everett branch at all, but being spread over a larger range of branches. Mystical experiences reported by many people can be understood as being associated with such wave functions.

So, a wave function associated with a particular me feeling, localized in a particular head, is just a possible collapse of an all possibilities embracing wave function. One of the many possibilities is the existence of the universe fine tuned for life. And of course, the wave function associated with or describing my conscious experience, has collapsed into such a fine tuned world.