pcalau12i

don't mind me i have autism

Many worlds theories are rather strange.

If you take quantum theory at face value without trying to modifying it in any way, then you unequivocally run into the conclusion that ψ is contextual, that is to say, what ψ you assign to a system depends upon your measurement context, your "perspective" so to speak.

This is where the "Wigner's friend paradox" arises. It's not really a "paradox" as it really just shows ψ is contextual. If Wigner and his friend place a particle in a superposition of states, his friend says he will measure it, and then Wigner steps out of the room for a moment when he is measuring it, from the friend's perspective he would reduce ψ to an eigenstate, whereas in Wigner's perspective ψ would instead remain in a superposition of states but one entangled with the measuring device.

This isn't really a contradiction because in density matrix form Wigner can apply a perspective transformation and confirm that his friend would indeed perceive an eigenstate with certain probabilities for which one they would perceive given by the Born rule, but it does illustrate the contextual nature of quantum theory.

If you just stop there, you inevitably fall into relational quantum mechanics. Relational quantum mechanics just accepts the contextual nature of ψ and tries to make sense of it within the mathematics itself. Most other "interpretations" really aren't even interpretations but sort of try to run away from the conclusion, such as significantly modifying the mathematics and even statistical predictions in order to introduce objective collapse or hidden variables in order to either get rid of a contextual ψ or get rid of ψ as something fundamental altogether.

Many Worlds is still technically along these lines because it does add new mathematics explicitly for the purpose of avoiding the conclusion of irreducible contextuality, although it is the most subtle modification and still reproduces the same statistical predictions. If we go back to the Wigner's friend scenario, Wigner's friend reduced ψ relative to his own context, but Wigner, who was isolated from the friend and the particle, did not reduce ψ by instead described them as entangled.

So, any time you measure something, you can imagine introducing a third-party that isn't physically interacting with you or the system, and from that third party's perspective you would be in an entangled superposition of states. But what about the physical status of the third party themselves? You could introduce a fourth party that would see the system and the third party in an entangled superposition of states. But what about the fourth party? You could introduce a fifth party.... so on and so forth.

You have an infinite regress until, at some how (somehow), you end up with Ψ, which is a sort of "view from nowhere," a perspective that contains every physical object, is isolated from all those physical objects, and is itself not a physical object, so it can contain everything. So from the perspective of this big Ψ, everything always remains in a superposition of states forever, and all the little ψ are only contextual because they are like perspectival slices within Ψ.

You cannot derive Ψ mathematically because there is no way to get from inherently contextual ψ to this preferred nonphysical perspective Ψ, so you cannot know its mathematical properties. There is also no way to define it, because each ψ is an element of Hilbert space and Hilbert space is a constructed space, unlike background spaces like Minkowski space. The latter are defined independently of the objects the contain, whereas the former are defined in terms of the objects they contain. That means for two different physical systems, you will have two different ψ that will be assigned to two different Hilbert spaces. The issue is that you cannot define the Hilbert space that Ψ is part of because it would require knowing everything in the universe.

Hence, Ψ cannot be derived nor defined, so it can only be vaguely postulated, and its mathematical properties also have to be postulated as you cannot derive them from anything. It is just postulated to be this privileged cosmic perspective, a sort of godlike ethereal "view from nowhere," and then it is postulated to have the same mathematical properties as ψ but that all ψ are also postulated to be subsystems of Ψ. You can then write things down like how a partial trace on Ψ can give you information about any perspective of its subsystems, but only because it was defined to have those properties. It is true by definition.

In a RQM perspective it just takes quantum theory at face value without bothering to introduce a Ψ and just accepts that ψ is contextual. Talking about a non-contextual (absolute) ψ makes about as much sense as talking about non-contextual (absolute) velocity, and talking about a privileged perspective in QM makes about as much sense as talking about a privileged perspective in special relativity. For some reason, people are perfectly happy with accepting the contextual nature of special relativity, but they struggle real hard with the contextual nature of quantum theory, and feel the need to modify it, to the point of convincing themselves that there is a multiverse in order to escape it.

I have the rather controversial opinion that the failure of communist parties doesn't come down the the failure of crafting the perfect rhetoric or argument in the free marketplace of ideas.

Ultimately facts don't matter because if a person is raised around thousands of people constantly telling them a lie and one person telling them the truth, they will believe the lie nearly every time. What matters really is how much you can propagate an idea rather than how well crafted that idea is.

How much you can propagate an idea depends upon how much wealth you have to buy and control media institutions, and how much wealth you control depends upon your relations to production. I.e. in capitalist societies capitalists control all wealth and thus control the propagation of ideas, so arguing against them in the "free marketplace of ideas" is ultimately always a losing battle. It is thus pointless to even worry too much about crafting the perfect and most convincing rhetoric.

Control over the means of production translates directly to political influence and power, yet communist parties not in power don't control any, and thus have no power. Many communist parties just hope one day to get super lucky to take advantage of a crisis and seize power in a single stroke, and when that luck never comes they end up going nowhere.

Here is where my controversial take comes in. If we want a strategy that is more consistently successful it has to rely less on luck meaning there needs to be some sort of way to gradually increase the party's power consistently without relying on some sort of big jump in power during a crisis. Even if there is a crisis, the party will be more positioned to take advantage of it if it has already gradually built up a base of power.

Yet, if power comes from control over the means of production, this necessarily means the party must make strides to acquire means of production in the interim period before revolution. This leaves us with the inevitable conclusion that communist parties must engage in economics even long prior to coming to power.

The issue however is that to engage in economics in a capitalist society is to participate in it, and most communists at least here in the west see participation as equivalent to an endorsement and thus a betrayal of "communist principles."

The result of this mentality is that communist parties simply are incapable of gradually increasing their base of power and their only hope is to wait for a crisis for sudden gains, yet even during crises their limited power often makes it difficult to take advantage of the crisis anyways so they rarely gain much of anything and are always stuck in a perpetual cycle of being eternal losers.

Most communist parties just want to go from zero to one-hundred in a single stroke which isn't impossible but it would require very prestine conditions and all the right social elements to align perfectly. If you want a more consistent strategy of getting communist parties into power you need something that doesn't rely on such a stroke of luck, any sort of sudden leap in the political power of the party, but is capable of growing it gradually over time. This requires the party to engage in economics and there is simply no way around this conclusion.

You people have good luck with this? I haven't. I don't find that you can just "trick" people into believing in socialism by changing the words. The moment if becomes obvious you're criticizing free markets and the rich and advocating public ownership they will catch on.