Consciousness may be inevitable given the universe as it exists. The remarkable thing, or the mysterious thing, is that the universe exists in such as way that makes it inevitable in the first place.
If a tree falls in a forest and no one is around to hear it does it make a sound? Same thing relatively. Consciousness is said to be the ground being. I think to 2 slit experiment and wave collapse function when making an observation, and other such experiments that prove this point to consciousness being everything. Without conscious observation everything is just waves of probability.