Octopus evolved a complex nervous system capable of intelligent behavior and perhaps of consciousness. It is argued e.g. by https://en.m.wikipedia.org/wiki/Other_Minds:_The_Octopus,_the_Sea,_and_the_Deep_Origins_of_Consciousness that this happened independently from the evolution of vertebrate nervous systems, given that our common ancestor was likely a very simple life form. Therefore octopus physiology may help shed light on consciousness. Market close will be extended until the hard problem of consciousness is solved.
Update 2025-06-22 (PST) (AI summary of creator comment): The creator has clarified that for cephalopod research to be considered to have played a significant role, it must be the consensus of the community that the solution to the hard problem of consciousness would have been delayed by at least 15 years had no octopus research been carried out.
@vdb such that, in the consensus of the community, it is understood that had no octopus research been carried out the solution would have been delayed by at least 15 years.