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But these dynamics aren't very scalable. Also I dunno if "prediction markets" is a very precise analogy, I think the dynamics are better than PMs in some ways and worse in others.

If you care about reality, that's your prerogative.

Well, the notion of "objective reality" could itself be confused, an incoherent thing to care about. Analogously, you might initially care about carrying out the will of God but later become an atheist. You need to somehow refactor your goals to match your new ontology.

You could consider the totality of mathematical truths to be "reality" if you want. Or if you mean you care about "the real world, which I am actually in", then this perspective tries to dissolve that notion.

This is one of the better sentences-that-sound-bizarre-without-context I've seen in a while.

You'd have a random mix of both (infinite?) alien simulations (both broken and unbroken. But you'll be at their complete mercy, if they want to torture you for fun they can) and infinite disembodied reincarnations of a few yottoseconds

I think the probabilities will be heavily tilted towards the aliens(or really, humanity/human-descended AIs in the future or an alternate timeline). But yes, I agree with the overall point that continuations of your stream of consciousness might become very weird and unpredictable past the point at which you would normally die on Earth(and probably even weirder as time goes on into the distant future)

Then we have some margin for error in some unimportant parts and have absolutely zero margin for error in the other parts

But all of the parts would have some margin for error because bounded physical processes can't store infinite information(Bekenstein bound). Adding in your guts, microbiome etc. doesn't fundamentally change the argument, they still have a far smaller number of degrees of freedom than your past light cone.

If you think aliens could recreate you by using enough random coin tosses to get to you, then you're only recreating a Boltzman brain but unlike the universe aliens do not have infinite ressources

Flipping a quantum coin a bunch of times doesn't actually require that many resources though, assuming you already have enough computational resources to store the brain. And aliens have a crucial advantage over vacuum fluctuations in that they can model dependencies that would be found in actual brains and only sample from brain states that would likely occur. Like if (made up numbers) there are 2^(10^15) possible brain states but only 2^(10^9) of them would be likely to occur in reality, the aliens can sample from that narrower space and thus get a relative factor of ~2^(10^15) more probability. (Yes aliens can't perfectly sample from the actual state space but it doesn't matter, any improvement over pure randomness will give a large increase in probability)

They'd need not only to simulate quantum states, they'd need the whole list of all quantum events and their results in the spacetime they are simulating in order to reproduce you perfectly

Not really though. Your brain has ~10^15 synapses. It literally doesn't have enough space to store records of its entire past light cone. So there is actually some equivalence class of possible past histories which could produce an identical brain state to the one you have now.

there is no conceptual way they could simulate you particularly

They definitely could, by just randomly sampling human brains they would have some low probability of picking out yours or mine in particular. With a randomized simulation they could pick us out with much higher probability.

In order to simulate a particular individual, it would require far more than merely simulating the species homo sapiens[...]

Yeah but the point is, for however many unlikely coincidences/"coin flips" the aliens would need to get right, the Boltzmann fluctuations would have to get at least that many coin flips right, plus more because they aren't modeling any deterministic parts of the process.

Even if a civilization decided to simulate humans on a massive scale, the probability of getting someone identical to you through a NON RANDOM process... Is nihil

You need to consider partially random/partially non-random processes. Imagine an alien civilization that decided what other race to simulate/what history to simulate based on flipping a series of quantum coins. The overall amplitude for that process picking you out will be very low, but still higher than the Boltzmann brain scenario. Why? Because the aliens will intentionally simulate the structured, deterministic parts of your life history and so will need less "random coincidences" to pick you out when compared to pure quantum fluctuations. This is even more so the case if we imagine future AIs simulating us, or humans in an alternate quantum branch who want to simulate alternative histories and decide on the exact person/civilization to simulate by flipping quantum coins. Yes the amplitude for this occurring will be very small, but still exponentially higher than the Boltzmann brain scenario.

Drake equation[...]can conclude that the rarity of conscious life is extremely high. We can even infer that it is likely we are the only conscious beings in the entire observable universe

Have you seen Robin Hanson's Grabby Aliens argument? Basically, he argues that there are likely other aliens civilizations out there(in the observable universe) based on how early we are in the universe's history. But even if we are the only life in the observable universe, it's once again all about the relative likelihood. Life was at any rate likely enough for us to exist, that's enough to see that it has far more relative likelihood compared to purely random fluctuations.

Unless you can prove that this is still far more probable than what I described which would mean that, most of your conscious time would be spent in conditions similar to our current conditions right now.

So, are you talking here about your and my current conscious experience, or what continuations of our conscious experience will tend to look like past the point at which we would typically die in baseline reality? If you're referring to what we're experiencing right now, that is a relatively "normal" human life, then I think most of the probability mass for that experience is either on (a) relatively "normal" instantiations or (b) possibly simulations, but actual simulations on a computer arising from a "normal" causal history, not Boltzmann brains. Now if you're thinking of possible continuations of our experience past what would normally be our biological death in "baseline" reality, then those would have their probability mass concentrated on scenario (b), simulations on computers arising from a simple causal history(perhaps run by aliens, or future humanity, or an AI built by either).

So, basically, once you are dead, I think it is far more likely that you will be instantiated again in broken circumstances rather than in normal ones

I think you're conflating subjective time and objective time. There is no 1:1 relationship between your internal subjective "timeline" and time in the external universe. So there's no reason to expect you to be instantiated "again" after your biological death; rather, there exist some weird possible continuations of your experience somewhere else in the multiverse, which would mostly be emulations with a simple causal origin.

Remember, "it all adds up to normality". The hypothesis "we are Boltzmann brains" predicts that we should see our experience degenerate into random static at any moment. Since we do not see this we should update against that hypothesis.

Most conscious beings in the universe would be simulated, in this scenario. Moreover, most would simply be what we can call "abominations", because they would have some mental illness or some fundamental problem making them broken shells. Most of the time , they would be simulated only for a few seconds before collapsing into nothingness.

OK I think I see where you are coming from more, you're thinking of like conscious beings being instantiated out of random noise, like Boltzmann brains. I think your intuition that most beings would arise in this fashion is mistaken: instead the vast majority of beings would find themselves in situations like ours, having arisen in a self-bootstrapping way from a relatively small random fluctuation(the origin of life in our case). The reason being is that far fewer coincidences(that is, unlikely quantum measurements) are required to generate a being in the "normal" way* than in the "Boltzmann brain" way: a relatively small number of fluctuations needed to seed the Earth with favorable conditions for life, say, then a relatively deterministic process of evolution occurring VS an entire brain state appearing out of the void**. This means that beings arising in "normal" scenarios are exponentially more likely than "Boltzmann brain" scenarios.

*Note that "normal" here could include AIs building simulations of people or other weird scenarios, I just mean to exclude "people arising out of random vacuum fluctuations for a yottosecond" or such things.

**of course to explain a particular being's life you need to condition on more details than the origin of life, but the point is that a being's life/brain state has a lot of redundancy which can better be explained/takes fewer coincidences to explain given an evolutionary account of their origins VS Boltzmann brain

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