Encouraging a hedonium shockwave as a long term cause area

Hello,

I'm writing because there's something that I view as a massively important cause area that I haven't seen seriously discussed much in the EA sphere, and I'm hoping to change that and bring about discussion on this issue. To put it briefly, I think the ultimate goal implied by utilitarianism, with its edict of the greatest happiness for the greatest number, is to initiate a hedonium shockwave, by which I mean converting as much of the unthinking matter of the universe as possible into a state of matter that experiences the maximum amount of pleasure per unit mass as possible. This would most likely be carried out by von Neumann probles spreading out at near light speed to convert all the matter they come in contact with into hedonium. While the technology to carry this out might be centuries or even millennia from now, because of how much potential utility a hedonium shockwave would generate, I believe that even slightly increasing the odds of humanity or post-humanity's progress leading towards a hedonium shockwave swamps almost anything else as a cause area in terms of raw utilitarian benefit. I don't mean this as a reductio ad absurdum on utilitarianism or a Pascal's mugging, I genuinely believe that a hedonium shockwave is the best possible outcome for intelligent life to instantiate, and that doing even the smallest things in the present to increase the odds of it coming about have massively outsized utilitarian benefits. So, if this is the case, how can we change the trajectory of humanity to make a hedonium shockwave more likely?

One thing that I think would make it more likely to be accepted as an ultimate end goal for humanity would be to remove fear of it being something that would destroy human or other intelligent life. It would be entirely possible for the shockwave to only convert unthinking matter outside of solar systems that contain life, since that would still make up 99.999...999% of the universe, and would allow intelligent life to still flourish at a superhuman but still sub-hedonium level of bliss. This would allow a "hedge" in case there is some meaning to existence beyond raw utilitarian maximization, so art and culture could flourish while matter that would have otherwise never been conscious is converted to hedonium.

What other things do you think could be done in the present to make the outcome of a hedonium shockwave more likely? Because of how much uncountably more happiness would be generated in a universe with a hedonium shockwave than in one without, I believe the basic utility multiplication makes it the most important long term cause area to focus on, despite how temporally and technologically remote it may be. So how can we make this a cause area that people will take seriously and try to put in effort to bring about, as they already do with other longtermist cause areas?