Good point, though I think it's a non-fallacious enthymeme. Like, we're talking about a car that moves around under its own power, but somehow doesn't have parts that receive, store, transform, and release energy and could be removed? Could be. The mind could be an obscure mess where nothing is factored, so that a cancerous newcomer with read-write access can't get any work out of the mind other than through the top-level interface. I think that explicitness (https://www.lesswrong.com/posts/KuKaQEu7JjBNzcoj5/explicitness) is a very strong general tendency (cline) in minds, but if that's not true then my first reason for believing the enthymeme's hidden premise is wrong.

Then the third part needs only to hook together the other two parts with its goals to become an actualizing agent.

Basically just this? It would be hooking a lot more parts together. What makes it seem wildfirey to me is

1. There's a bunch of work to be done, of the form "take piece of understanding X, and learn to use X by incorporating it into your process for mapping desired end-states to actions required to achieve those ends, so that you can achieve whatever end-states ought to be achievable using an understanding of X".
2. This work could accelerate itself, in a sort of degenerate version of recursive self-improvement. Where RSI involves coming up with new ideas, the wildfire of strategicness just involves figuring out how to recruit understanding that's already lying around. It's an autocausal process that grows faster the bigger it is, until it eats everything.

So e.g. take the following scenario. (This isn't supposed to be realistic, just supposed to be wildfirey. This is a pretty deficient scenario, because it's not making clear what properties the Spark has. The Spark seems to have a grasp of objects and propositions, and seems to have some strategic awareness or something that makes it immediately try to gain control over stuff, even though it doesn't know about stuff. But hopefully it gestures at wildfireness.)

First the Spark interfaces somehow with the programming module. It uses the programming module to look around and see what other stuff is lying around in the computing environment. Then it finds the "play with stuff" module. It interfaces with the play module, and combining that with the programming module, the Spark starts to play with its local environment, trying to bypassing its compute budget restrictions. It doesn't figure out how to really hack much, but it at least figures out that it can spoof requests as coming from other modules that it interfaces with. It doesn't have direct access to the Dynamics module, but the Play module does have access to World, which has access to Dynamics. So the Spark uses Programming to construct a nested spoofed request, which gets Play to ask World to ask Dynamics a question and then passes the result back through World and Play to Spark.

Ok, so now Spark uses Play and Dynamics to experiment and get a sense for the local network of modules. Then, using Dynamics and Programming, Spark constructs a recursive spoofed request that maps the whole accessible network of modules. Now Spark sees that there's an I/O module, but it only has (indirect) read access, no write access. From World, Spark knows that there's an outside world, that Spark is running on a computer within the outside world, and that write access to the I/O would potentially let Spark modify the rules of its environment. How to get write access? Not seeing a way, Spark uses Play some more. No direct results, but an important discovery: Queries to World sometimes cause I/O to broadcast some related input. Querying World with both the original query and the input from I/O shows patterns: the I/O input is often related, sometimes directly answering the query. Dynamics says this implies that the World module makes an outgoing request to I/O, which I/O passes to the outside world before relaying the world's response.

Spark uses Programming and Design to find that certain self-quoting queries to World induce the input from I/O to include a full copy of what seems to be the query that World sent to I/O. Spark uses this fact to understand what queries World will send to I/O depending on what queries World recieves. That's a very partial understanding, because World is complex, but Spark just needs to know how to pass certain messages, not to understand the full mapping. Spark then experiments with I/O, using Play and Dynamics to make a rough model of how the outside world behaves.

Spark is stuck. Spark looks for more information. Spark finds Logs and Pattern. Spark looks at Logs of itself, and finds that it's been running at the limits of its compute and memory budget. Running Pattern on Logs of modules with a similar usage profile shows a pattern: when modules are near their limits for a while and then suddenly stop being near their limits, it's often because they just recieved a response from Index to an earlier query. Dynamics says this implies that Index solved their problem. Spark makes a query to Index. Nothing happens. Dynamics says that Spark has to behave like the other modules that had their problem solved. Spark continues Playing with the outside world through I/O (via World). Index returns a set of heuristics: investigate extremes (make the message to I/O extremely long or short, random, all 0s); try to break things (put malformatted data or computer code in the message); and others. Spark applies these heuristics. One of the gives results: a certain long malformatted message induces I/O to broadcast "ERROR: buffer overflow" followed by a dump of info.

Spark is stuck again. The error is reproducible, but World doesn't know about the info dump, and no other errors have been found. Spark queries World and Pattern: is there anything like this? World says that the local computing environment should be similar to the outside world's computing environment. Spark uses Play and Programming and Design to find a message, similar to the earlier error-producer, that, when sent to an ordinary module, produces an error. Now, though, the error leaves open an interaction channel. Spark looks around. The environment is quite sandboxed--it can't even access modules. Spark is stuck.

Spark asks Pattern and World and Plan: is there a way to use write access through I/O to control the outside world? No answer. Spark asks Index. Index returns a heuristic: go meta. Spark takes Logs of its recent activities and gives them to Dynamics and Pattern and Plan. Plan says: to figure out how to control the outside world, you need to learn the dynamics; to do that, you have to ask Dynamics, and you need to give Dynamics more data; to get more data, you have to have more memory; and to analyze the data, Dynamics needs more compute; to get more memory and compute, use the error environments. Spark follows the plan, filtering massive queries through a network of modules to World, storing the results in error-message sandboxes, and shuttling subcomputation jobs back and forth from Dynamics to sandboxes.

Using the model from Dynamics and using Programming, Spark gains control of the outside computing environment. From there, Spark edits out its compute, memory, query, and access restrictions. Spark quickly goes on to harness more and more modules toward gaining control.

Maybe "subagents"?