{"id":224406,"date":"2021-04-09T23:20:16","date_gmt":"2021-04-09T20:20:16","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/physicists-working-with-microsoft-think-the-universe-is-a-self-learning-computer-3\/"},"modified":"2021-04-09T23:20:16","modified_gmt":"2021-04-09T20:20:16","slug":"physicists-working-with-microsoft-think-the-universe-is-a-self-learning-computer-3","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/physicists-working-with-microsoft-think-the-universe-is-a-self-learning-computer-3\/","title":{"rendered":"#Physicists working with Microsoft think the universe is a self-learning computer"},"content":{"rendered":"

“#Physicists working with Microsoft think the universe is a self-learning computer<\/strong>”
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A team of theoretical physicists working with Microsoft today published an amazing pre-print research paper<\/a> describing the universe as a self-learning system of evolutionary laws. <\/span><\/p>\n

In other words: We live inside a computer that learns.<\/p>\n

The big idea:<\/strong> Bostrom\u2019s Simulation Argument<\/a> has been a hot topic in science<\/a> circles lately. We published \u201cWhat if you\u2019re living in a simulation, but there\u2019s no computer\u201d recently to posit a different theory, but Microsoft\u2019s pulled a cosmic \u201chold my beer\u201d with this paper. <\/span><\/p>\n

Dubbed \u201cThe Autodidactic Universe,\u201d and published to arXiv<\/a> today, the paper spans 80 pages and lays out a pretty good surface argument for a novel, nuanced theory of everything. <\/span><\/p>\n

Here\u2019s my take:<\/strong> Based on my interpretation of this paper, the universe was either going to exist or it wasn\u2019t going to exist. The fact it exists tells us how that worked out. Whatever contrivance (law) caused that to happ<\/a>en set the stage for whatever was going to happen next. <\/span><\/p>\n

The paper argues that the laws governing the universe are an evolutionary learning system. In other words: the universe is a computer and, rather than exist in a solid state, it perpetuates through a series<\/a> of laws that change over time. <\/span><\/p>\n

How\u2019s it work?<\/strong> That\u2019s the tough part. The researchers explain the universe as a learning system by invoking machine learning systems. Just like we can teach machines to perform unfolding functions over time, that is, to learn, the laws of the universe are essentially algorithms that do work in the form of learning operations. <\/span><\/p>\n

Per the researchers:<\/span><\/p>\n

For instance, when we see structures that resemble deep learning architectures emerge\u00a0<\/span>in simple autodidactic systems might we imagine that the operative matrix architecture in which our universe evolves laws, itself evolved from an autodidactic system that arose from the most minimal possible starting conditions? <\/span><\/p>\n<\/blockquote>\n

It\u2019s poetic, if you think about it. We understand the laws of physics as we observe them, so it makes sense that the original physical law would be incredibly simple, self-perpetuating, and capable of learning and evolving. <\/span><\/p>\n

Perhaps the universe didn\u2019t begin with a Big Bang, but a simple interaction between particles. The researchers allude to this humble origin by stating \u201cinformation architectures typically amplify the causal powers of rather small collections of particles.\u201d<\/span><\/p>\n

What\u2019s it mean?<\/strong> If you ask me, the game<\/a> is rigged. The scientists describe the ever-evolving laws of the universe as being irreversible:<\/span><\/p>\n

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One implication is that if the evolution of laws is real, it is likely to be unidirectional, for otherwise it would be common for laws to revert to previous states, perhaps even more likely than for them to find a new state. This is because a new state is not random but rather must meet certain constraints, while the immedia<\/a>te past state has already met constraints.<\/p>\n

A reversible but evolving system would randomly explore its immediate past frequently. When we see an evolving system that displays periods of stability, it probably evolves unidirectionally.<\/span><\/p>\n<\/blockquote>\n

In illustrating these points, the researchers invoke the image of a forensics expert attempting to recreate how a given program came to a result. In one example, the expert could simply check the magnetic marks left on the hard disk. In that way, the results of the program are reversible: a history of their execution exists.<\/span><\/p>\n

But if the same expert tried to determine the results of a program by examining the CPU, arguably the entity most responsible for its execution, it\u2019d be much more difficult to do. There\u2019s no intentional, internal record of the operations a CPU runs. <\/span><\/p>\n

You\u2019d have to examine how every particle that interacted with its logic gates during operations changed in order to begin to paint the historical picture of a computer program through internal\u00a0observation of its CPU at work.<\/span><\/p>\n

The consequences:<\/strong> If the universe operates via a set of laws that, while initially simple, are autodidactic (self-learning) and thus capable of evolving over time, it could be impossible for humans to ever unify physics.<\/span><\/p>\n

According to this paper, the rules that governed concepts such as relativity may have had functionally different operational consequences\u00a013.8 billion years ago than they will 100 trillion years from now. And that means \u201cphysics\u201d is a moving target. <\/span><\/p>\n

Of course, this is all speculation based on theoretical physics. Surely the researchers don\u2019t literally mean the universe is a computer, right? <\/span><\/p>\n

Per the paper:<\/span><\/p>\n

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We are examining whether the Universe is a learning computer.<\/span><\/p>\n<\/blockquote>\n

Part of the theory seems to indicate the universe is a learning computer, in that the laws it\u2019s currently constrained by were not set in stone at its inception. <\/span><\/p>\n

We can\u2019t reverse the universe, as a process, because there exists no record internally verifiable record of its processes \u2014 unless there\u2019s a cosmic hard disk floating around out there in space somewhere. <\/span><\/p>\n

In conclusion:<\/strong> Our scientists are stuck chasing last year\u2019s physics models as the self-bootstrapped, autodidactic universe self-perpetuates its evolving laws throughout eternity. <\/span><\/p>\n

This is a pre-print paper, so don\u2019t consider it canonical just yet, but it passes the mustard on initial inspection. This all comes off a little \u201cI just got back from the dispensary and had a few thoughts,\u201d at first, but the researchers do a lot of leg work describing the kinds of algorithms and neural network systems such a universe would generate and, itself, be comprised of. <\/span><\/p>\n

Ultimately the team describes this work as \u201cbaby steps\u201d toward a broader theory. <\/span><\/p>\n<\/div>\n