Computing systems and computer-implemented methods for specifying distributed computation. The systems and methods utilize computer-readable code causing a computer to engage in reversible, self-organizing hierarchical space-like computation that create information. At least one sensor and effector adapted to react to an environment external to the computer/computing system can create information based on an input from or “experience” with that environment.
Please help me write a proper abstract based on the patent claims. CLAIM: 1. A computing device configured to implement a space-like computation using a plurality of concurrent threads that are each activated based on the occurrence, co-occurrence, or exclusion of states belonging to other of the concurrent threads, the device comprising: a plurality of two-state sensors that each sense a phenomenon within a surround that includes a tuple space, and each produce a binary signal indicating whether the sensed phenomenon is present in or absent from the tuple space; one or more effectors configured to produce an effect on the surround, wherein for each effector at least one of the plurality of sensors senses the effect of the effector on the surround; and a plurality of actions each having an external state, a level, and a grade, and being configured to execute a co-exclusion of two of the concurrent threads, the external state being determined at least in part by the states of one or more of the sensors, the level representing the number of the co-exclusions beneath the action in the hierarchy, and the grade representing the number of sensors whose states determine the external state of the action, the plurality of actions being arranged in a hierarchy wherein each of the plurality of actions is a node in the hierarchy. 2. The computing device of claim 1, further comprising one or more Corms each configured to instantiate a new action in the plurality of actions by: instantiating, on one or more levels of the hierarchy, at least one event window configured to detect a co-exclusion between two of the plurality of actions and return the co-exclusion to the Corm that instantiated the event window; responsive to receiving, from one of the at least one event window, the co-exclusion of a first action and a second action of the plurality of actions, connecting the nodes of the first action and the second action as child nodes of the new Action node; setting the external state of the new Action according to the external states of the first and second Actions; and setting the grade of the new Action based on the grades of the first Action and the second Action; each of the one or more Corms being further configured to instantiate the new Action only if the first action does not share any of the plurality of sensors with the second Action. 3. The computing device of claim 2, wherein the Corm that instantiates the new Action: emits a tuple indicating the new action is one of one or more top nodes of the hierarchy, the one or more top nodes being nodes that are not child nodes of any other of the nodes; and removes any tuples that indicate either of the child nodes of the new action is one of the top nodes. 4. The computing device of claim 2, wherein the Corm that instantiates the new Action sets the grade of the new Action based on the grades of the first Action and the second Action as follows: the Corm instantiates the new Action with grade 1 when the first Action has grade 0 and the second Action has grade 1; the Corm instantiates the new Action with grade 2 when the first Action has grade 1 and the second Action has grade 1; the Corm instantiates the new Action with grade 3 when the first Action has grade 1 and the second Action has grade 2; the Corm instantiates the new Action with grade 1 when the first Action has grade 2 and the second Action has grade 2; the Corm instantiates the new Action with grade 1 when the first Action has grade 2 and the second Action has grade 3; and the Corm instantiates the new Action with grade 2 when the first Action has grade 3 and the second Action has grade 3; and wherein any other combination of the grades of the first Action and the second Action results in the new Action not being instantiated. 5. The computing device of claim 1, wherein: a bottom level of the hierarchy comprises either or both of: one or more of the sensors; and one or more of the effectors; the plurality of Actions are arranged in the hierarchy in order to carry out one or more goals, the one or more goals modifying the space-like computation from a current state to a goal state based on one or more impulses in the surround, the plurality of Actions propagating each of the one or more impulses upward through the hierarchy and each of the one or more goals downward through the hierarchy, one or more of the plurality of Actions being configured to cause one or more of the effectors to produce the corresponding effect on the surround; and the computing device uses co-exclusion between pairs of sensors and pairs of Actions to automatically self-organize the plurality of Actions into one or more subsumption architectures that respond to the surround. 6. The computing device of claim 5, wherein each of the one or more impulses is introduced from the surround to the space-like computation as an inversion of the state of a receiving sensor of the plurality of sensors, and wherein the plurality of Actions carry out the goal by, upon introduction of the one or more impulses, updating their external states as needed to: perform a bubble up process that communicates the states of one or more of the plurality of sensors from a bottom level of the hierarchy upward to at least one level of the hierarchy higher than the bottom level, the bubble up process creating a trail for each of the one or more impulses, the trail comprising the Actions that updated their external states while communicating the states of the one or more of the plurality of sensors upward; and perform a trickle down process that communicates, by retracing the trail of the bubble up process, one or more subgoals from one or more levels of the hierarchy higher than the bottom level downward to the one or more Actions that cause the one or more effectors to produce the effect as identified by the corresponding subgoal, the one or more subgoals together forming the goal. 7. The computing device of claim 6, wherein the nodes of the hierarchy include parent nodes, child nodes to the parent nodes, and top nodes that are parent nodes and are not child nodes, and wherein the threads associated with each one of the Actions are arranged in a plurality of sets including: a first set comprising threads that perform the bubble up process by: detecting a change occurring in one or more of the sensors or in one or more originating Actions of the plurality of Actions, the one or more originating Actions being at a level of the hierarchy below the Action and being the first of the plurality of Actions to detect the inversion of the state of the receiving sensor; updating the external state of the Action according to the change; and if the node of the Action is one of the child nodes, communicating the change upward to the Action of the node's parent node; a second set comprising threads that perform a distributed back-chaining process which, if the Action is not grounded, adds to a tree of potential causal links from the originating Action to one of the Actions that is grounded and has the same level as the originating Action, the tree including zero, one, or more links to other Actions of the plurality of Actions, the other Actions being ungrounded and having the same level as the originating Action; and a third set comprising threads that, provided the Action is grounded, perform the trickle down process by: detecting, from one of the levels of the hierarchy above the Action, a first of the subgoals that identifies the Action; splitting the first subgoal into second and third subgoals; communicating the second subgoal to one of the child nodes and the third subgoal to the other of the child nodes; and instigating further execution of any chain that links to the Action and is waiting for the Action to execute. 8. The computing device of claim 7, wherein one or more of the co-exclusions pertain to an element of the surround and, when one of the one or more impulses relates to the element, the one or more originating Actions contain the threads that are subject to the co-exclusions of the element, which one or more originating Actions then initiate the bubble up process. 9. The computing device of claim 7, wherein the goal state of the space-like computation is connected to the current state of the space-like computation at an intersection of a vertical aspect with a horizontal aspect, the vertical aspect comprising the bubble up process and the trickle down process, and the horizontal aspect being determined by the distributed back-chaining process. 10. The computing device of claim 9, wherein the horizontal aspect corresponds to one of the levels of the hierarchy. 11. The computing device of claim 9, wherein in the distributed back-chaining process: a first of the Actions, which is not grounded, which comprises a first of the co-exclusions that includes a first of the plurality of sensors and the receiving sensor of a first of the one or more impulses, and which has the receiving sensor of the first impulse in a first of its child nodes, uses its second set of threads to issue a first new impulse of the one or more impulses, the first new impulse identifying the first sensor as the receiving sensor for the first new impulse; a second of the Actions, which has the same level as the first Action, and which comprises a second of the co-exclusions that includes the first sensor and a second of the plurality of sensors: detects the first new impulse; adds to the tree by allowing the first Action to link to it; and if the second Action is not grounded, uses its second set of threads to issue a second new impulse of the one or more impulses, the second new impulse identifying the second sensor as the receiving sensor of the second new impulse; the distributed back-chaining process repeating the steps of the second Action using other of the plurality of Actions until the most recent of the new impulses is detected by one of the Actions that is grounded. 12. The computing device of claim 11, wherein the distributed back-chaining process creates a plurality of backward chains of causal links between two of the plurality of Actions, the plurality of backward chains forming the tree, and wherein execution of each of the backward chains is kept in abeyance until the one or more causally prior subgoal states required by the backward chain is issued by one of the Actions that is grounded and has a higher level than the Actions of the backward chain. 13. The computing device of claim 11, wherein: when the node of the first Action is not one of the top nodes, the first Action performs the bubble up process by issuing one of the impulses that triggers the distributed back-chaining process for the Actions in the next higher level of the hierarchy; and each of the Actions whose node is one of the top nodes performs the trickle down process by: converting one or more of the one or more impulses into one or more of the one or more goals; and communicating the one or more of the one or more goals to the child nodes of the Action. 14. The computing device of claim 11, wherein any of the plurality of Actions that are grounded are viewable by a monitor, the monitor being unable to, by viewing various ones of the plurality of Actions that are grounded, derive information about any of the plurality of Actionsthat: are in the hierarchy below the various ones of the plurality of Actions that are grounded; and are connected to the various ones of the plurality of Actions that are grounded. 15. The computing device of claim 6, further configured to perform a recall operation in response to a request from a user of the computing device for a fact known to the space-like computation, in which recall operation: the computing device instantiates a devoted event window, the devoted event window containing the fact; and the computing device generates a recall impulse as one of the impulses, the recall impulse setting the goal state such that the bubble up process produces one or more Relevance indicators that ground one or more of the first Actions. 16. The computing device of claim 15, wherein the space-like computation discovers novel processes by using the devoted event window to insert one or more new subgoals related to the recalling of the fact. 17. The computing device of claim 6, wherein the space-like computation implements an avatar structure that represents a human user in a virtual world, in which space-like computation: the plurality of Actions comprise a plurality of system-supplied Actions that implement the avatar structure and are supplied to the space-like computation by a system designer; the sensors and the effectors that are contained in the plurality of system-supplied Actions comprise an interface to the virtual world in which the avatar structure operates; one or more of the impulses are passed into the space-like computation by the user; and the avatar structure is anchored to the public or personal identity of the user. 18. The computing device of claim 6, further configured to: detect a pattern in the space-like computation that indicates a set of processes that is locked in a closed cyclic pact; identify the Actions participating in the pact; relieve the pact by temporarily removing the subgoals and the impulses on which the Actions participating in the pact are operating; and reestablish the removed subgoals and impulses after a fitting period of time. 19. The computing device of claim 5, wherein each of the plurality of Actions further comprises a name that is known to the space-like computation and unknown to the surround. 20. The computing device of claim 19, wherein each of the plurality of Actions further comprises two child nodes that are also Actions, and wherein each Action's name is derived from the names of the Action's child nodes in a manner that prevents the names of the child nodes being derived from the name of the Action. 21. The computing device of claim 1, wherein each of one or more tuples in the tuple space includes one or more security bits that can be set to deny matches of unbound fields to the tuple or to one or more fields of the tuple.