Missile Computer Fixes Flight Path by Calculating Where It Isn't

The Missile Knows Where it is (Remix) — Krasniye

Krasniye

Guidance systems maintain spatial awareness and derive navigational error by continuously subtracting where the weapon isn't from where it is.

AI-assisted summary of The Missile Knows Where it is (Remix) — original source. Check the original for full context.

Source published:

Key ideas

  • Missile navigation operates on negative positioning logic, maintaining spatial awareness because the platform knows where it is not. (0:00)
  • Directional trajectory adjustments are generated by subtracting where the missile is from where it isn't (or vice versa) to obtain a quantifiable deviation. (0:00)
  • Continuous transit shifts spatial states, converting coordinates where the missile wasn't into where it is, while former locations become where it isn't. (0:00)
  • When sensory telemetry degrades, the guidance computer overcomes real-time positional ambiguity by combining historical fixes with certainty regarding where it cannot reasonably be. (0:40)
  • Guidance error is mathematically synthesized by differentiating the discrepancy between intended and past coordinates from the algebraic sum of prohibited locations and historical positions. (0:40)

Detailed notes

## Background Uploaded to YouTube by Krasniye on March 12, 2017, this video features a remix originally sourced from 4chan that the creator shared simply because they found it 'beautiful.' The uploader's description notes that all ad revenue goes directly to EMG and explicitly encourages viewers to use an ad blocker.

## TL;DR The presentation delineates the core navigational logic of a missile guidance system based on continuous negative positioning: knowing where it is by knowing where it isn't. By calculating the difference between occupied and unoccupied coordinates, the system produces deviations to drive corrective course adjustments. When variations degrade positional telemetry, the guidance computer relies on temporal memory to track where it was alongside parameters of where it cannot reasonably be. It resolves navigational uncertainty by differentiating intended trajectories from the algebraic sum of where it shouldn't be and where it was to compute guidance error.

## Atmosphere & style The presentation is marked by a rhythmic, deadpan instructional delivery that treats paradoxical linguistic loops with clinical, military-grade seriousness. Its sterile, matter-of-fact narration transforms dizzying subtraction logic into an almost hypnotic technical lecture. The overall experience feels like an uncanny, retro-futuristic training demonstration where rigid mathematical computation collides with absurd epistemological wordplay.

## Bulletin - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) Missile navigation operates on negative positioning logic, maintaining spatial awareness because the platform knows where it is not. - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) Directional trajectory adjustments are generated by subtracting where the missile is from where it isn't (or vice versa) to obtain a quantifiable deviation. - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) Continuous transit shifts spatial states, converting coordinates where the missile wasn't into where it is, while former locations become where it isn't. - [00:40](https://www.youtube.com/watch?v=_LjN3UclYzU&t=40s) When sensory telemetry degrades, the guidance computer overcomes real-time positional ambiguity by combining historical fixes with certainty regarding where it cannot reasonably be. - [00:40](https://www.youtube.com/watch?v=_LjN3UclYzU&t=40s) Guidance error is mathematically synthesized by differentiating the discrepancy between intended and past coordinates from the algebraic sum of prohibited locations and historical positions.

## Key takeaways - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) The foundational axiom of the navigation system establishes that the missile knows where it is at all times because it knows where it isn't. - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) Quantifiable deviations are produced by subtracting the missile's occupied state from its unoccupied state, or vice versa. - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) Directional steering adjustments during flight depend on deviation values derived from negative spatial comparison. - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) Navigating through space continuously updates spatial identity, transforming a coordinate where the missile wasn't into the coordinate where it is. - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) Prior physical coordinates ('where it was') automatically convert into negative reference points ('where it isn't') upon arrival at a new location. - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) System variation is formally defined as the exact numerical discrepancy between the missile's current coordinate and the position it previously did not occupy. - [00:40](https://www.youtube.com/watch?v=_LjN3UclYzU&t=40s) Temporal trajectory tracking requires the guidance apparatus to retain an active historical record of where the missile was. - [00:40](https://www.youtube.com/watch?v=_LjN3UclYzU&t=40s) External disturbances and uncompensated variations can degrade telemetry, temporarily leaving the missile uncertain of its immediate coordinates. - [00:40](https://www.youtube.com/watch?v=_LjN3UclYzU&t=40s) Despite telemetry noise, the system operates within bounded certainty regarding where it cannot reasonably be, paired with known prior fixes. - [00:40](https://www.youtube.com/watch?v=_LjN3UclYzU&t=40s) The guidance computer reconciles positional ambiguity by comparing theoretical destination points ('where it should be') with historical origins ('where it was'). - [00:40](https://www.youtube.com/watch?v=_LjN3UclYzU&t=40s) Operational error is generated by differentiating this comparative positional value from the algebraic sum of prohibited coordinates and previous locations. - [00:40](https://www.youtube.com/watch?v=_LjN3UclYzU&t=40s) The resulting error computation provides the definitive corrective metric required to steer the missile along its planned trajectory.

## Detailed walkthrough ### [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) Principles of Differential Deviation and State Transitions

The instructional audio presents the foundational operational logic governing missile navigation with rhythmic, deadpan precision. At the heart of the system is an epistemological paradox rooted in subtraction: the weapon platform maintains total situational awareness not through direct observation alone, but through continuous negative positioning. The narrator explains this core axiom plainly: “The missile knows where it is at all times. It knows this because it knows where it isn't.” By systematically subtracting where it is from where it isn't—or conversely, subtracting where it isn't from where it is—the navigational logic establishes a quantifiable difference or deviation.

```mermaid flowchart TD accTitle: Basic Deviation and Positional Transition accDescr: Diagram illustrating how the missile identifies deviation and updates its positional states. subgraph States["Positional Reference Points"] IS["Where it is"] ISNT["Where it isn't"] WAS["Where it was"] WASNT["Where it wasn't"] end subgraph Process["Guidance Adjustment"] DEV["Obtain Difference / Deviation"] TRANS["Shift to Position Where It Isn't"] UPDATE["Arrival: Position It Wasn't Becomes Position It Is"] end IS <-->|"Subtracted from / compared"| ISNT ISNT --> DEV DEV --> TRANS TRANS --> WASNT WASNT --> UPDATE UPDATE --> WAS ```

This mathematical deviation provides the directional drive necessary to adjust the weapon's trajectory in flight. Through corrective steering, the missile travels toward a location where it previously was not, altering its ongoing spatial identity relative to its journey. As the voiceover delineates: “Consequently, the position where it is is now the position that it wasn't, and it follows that the position that it was is now the position that it isn't.” When a mismatch arises between the location currently occupied and the target destination previously unoccupied, the tracking apparatus registers a measurable discrepancy designated as a variation.

- The primary computational mechanism relies on subtracting the negative state ("where it isn't") from the active state ("where it is") or vice versa to produce a deviation. - Traversing space permanently shifts the missile's states: arrival at a former "wasn't" position instantly converts that coordinate into its current "is," while rendering its former "was" into its present "isn't." - A system variation is formally defined as the exact numerical difference between the missile's real-time position and the coordinate where it wasn't.

[00:40](https://www.youtube.com/watch?v=_LjN3UclYzU&t=40s) The Guidance Computer Scenario and Error Derivation

Navigational continuity requires more than an appraisal of present coordinates; the guidance computer must retain historical trajectory data to reconcile external disturbances. As the voiceover stresses, knowing current discrepancies is incomplete without temporal memory: “However, the missile must also know where it was.” When an uncompensated variation alters or degrades the sensory telemetry collected during flight, the missile experiences operational ambiguity, leaving it momentarily uncertain of its exact location in space.

```mermaid flowchart LR accTitle: Guidance Computer Error Computation accDescr: Flowchart showing how historical coordinates and algebraic sums generate guidance error. subgraph Inputs["Telemetry Data"] SHOULD["Where it should be"] WAS["Where it was"] SHOULDNT["Where it shouldn't be"] end subgraph Computation["Differential Synthesis"] SUB["Subtract Where It Should Be from Where It Was"] ALG["Algebraic Sum of Where It Shouldn't Be and Where It Was"] ERR["Guidance Error"] end SHOULD --> SUB WAS --> SUB SHOULDNT --> ALG WAS --> ALG SUB -->|"Differentiated from"| ERR ALG -->|"Differentiated from"| ERR ```

To resolve this ambiguity, the computer leverages the parameters of which it remains confident: it maintains a reasonable certainty of where it cannot be, paired with an exact record of its prior fix. The system executes a comparative calculation by subtracting its intended theoretical coordinate from its historical origin coordinate, or vice versa. The narrator encapsulates this final analytical synthesis by noting that the computer operates “by differentiating this from the algebraic sum of where it shouldn't be and where it was, which is called error.” Through this differentiation, the guidance subsystem resolves positional noise into an actionable error metric to govern further flight corrections.

- External variations introduce telemetry degradation, depriving the missile of absolute certainty regarding its real-time coordinates. - Despite positional uncertainty, the navigation system maintains certainty over where it is not, bounded "within reason," alongside a confirmed log of where it was. - The system generates its final error reading by contrasting the difference between intended location ("where it should be") and origin ("where it was") against the algebraic sum of its prohibited coordinates ("where it shouldn't be") and its past coordinate ("where it was").

## Notable quotes > [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) The missile knows where it is at all times. It knows this because it knows where it isn't.

## Mentioned 4chan, EMG, Krasniye

## Video description Taken from 4chan, uploaded here because it's beautiful.

All ad revenue from this video goes directly to EMG so I encourage you to use adblock.

[Source](https://www.youtube.com/watch?v=_LjN3UclYzU)

中文简报

导弹计算机通过计算其“不在何处”修正飞行航线 制导系统通过不断从武器当前所在位置减去其不在的位置,保持空间感知并推导导航误差。 该报告阐述了一种基于持续负向定位的导弹制导系统核心导航逻辑:通过知晓自己“不在何处”来确定自己“身在何处”。通过计算所处坐标与未处坐标之间的差值,系统得出偏差以驱动航线修正。当参数变化导致位置遥测精度下降时,制导计算机依靠时间记忆来追踪其过去所在位置,并结合其合理情况下不可能处于的位置参数。它通过计算预期弹道与“不应在的位置及过去所在位置的代数和”之间的差分,来消除导航不确定性并得出制导误差。 导弹导航基于负向定位逻辑运作,平台因知晓自身不在何处而保持空间感知。 (0:00) 通过将导弹所在位置减去其不在的位置(或反之),生成方向弹道修正,以获得可量化的偏差。 (0:00) 持续移动会改变空间状态,将导弹原本不在的坐标转化为其当前所在位置,而先前的所在地则变为其不在的位置。 (0:00) 当传感遥测退化时,制导计算机通过将历史定位与自身合理情况下不可能处于的位置确定性相结合,克服实时位置歧义。 (0:40) 制导误差在数学上是通过对“预期坐标与过去坐标的差异”同“禁止位置与历史位置的代数和”进行求差来综合计算的。 (0:40)

Detailed notes — zh

## Background 该视频由 YouTube 频道 Krasniye 于 2017 年 3 月 12 日发布。根据页面描述,该内容源自 4chan 论坛,作者因觉得其极具美感而上传,并提到所有广告收益均直接流向 EMG,建议观众开启广告拦截器。 ## TL;DR 这段内容围绕一段经典的导弹惯性制导原理解说展开,通过极度绕口且严密的逻辑阐述导弹如何确定自身坐标。核心逻辑指出导弹之所以知道自己在哪里,是因为它知道自己不在哪里,并通过不断计算“所在位置”与“不在位置”之间的差值来获取偏差。在面对外部干扰导致绝对坐标不确定的情况下,制导计算机依靠记忆中的历史位置与合理公差范围,通过代数求和与微分运算最终得出系统的导引误差。 ## Atmosphere & style 整段解说呈现出一种近乎荒诞却又极其严谨的冷峻科技美感,语调平稳、死板且充满哲思。如同机械般反复递进的绕口令式句式构建出独特的催眠感与超现实感,让原本枯燥的工程控制理论听起来既像是一场一本正经的学术恶搞,又像是一段深奥的数理诗篇。 ## Bulletin - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 导弹惯性制导逻辑建立在独特的互补判断之上:系统始终清楚自身坐标,根本原因在于其明确知道自己不在何处。 - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 系统通过计算“当前所在位置”与“不在位置”之间的减法差值来推导偏差量,并在此基础上不断迭代更新自身状态。 - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 当外部干扰导致精确坐标无法百分之百确定时,计算机依据合理公差范围内“不在的位置”与“曾经所处的位置”重构基准。 - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 最终的系统误差(Error)通过将应处位置与曾处位置的差值,同不应处位置与曾处位置的代数和进行微分对比而得出。 ## Key takeaways - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 导弹制导计算机的核心运行前提,是通过明确“不在哪里”来反向锁定“在哪里”。 - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 制导逻辑利用“所在位置”与“不在位置”的减法运算得出差值与偏移量(Deviation)。 - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 导弹移动到此前未处于的坐标后,该新坐标便即刻转变为其当前所处的新状态。 - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 位移完成后,导弹原本所处的位置自动切换并被定义为当前“所不在的位置”。 - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 若当前所处位置并非原本不该在的位置,系统便会获取一个修正偏差值(Variation)。 - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 惯性制导计算机不仅需要实时计算瞬时位置,还必须持续记忆历史轨迹与“曾经所处的位置”。 - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 外界环境扰动可能导致传感器获取的坐标模糊,但系统在合理公差内仍能锁定“不在的位置”。 - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 计算机将“应该处于的位置”与“过去处于的位置”进行做差比对以确定位移趋势。 - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 系统进一步计算“不应处于的位置”与“过去处于的位置”的代数和作为参照项。 - [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 通过对位置差值与代数和执行微分对比,制导计算机最终解算出用于姿态修正的核心误差(Error)。 ## Detailed walkthrough ### [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) 导弹制导逻辑与偏差推导原理 这段标志性的技术解说以一种极其严密、绕口且近乎哲学的语言逻辑,阐释了惯性制导计算机如何追踪自身坐标。系统运行的基本前提在于:“导弹在任何时候都知道自己在哪里。它之所以知道,是因为它知道自己不在哪里。”(“The missile knows where it is at all times. It knows this because it knows where it isn't.”)制导逻辑通过在“它所在的位置”与“它不在的位置”之间进行减法运算,得出二者之间的差值或偏差值。通过校准并移动至一个它原本不在的位置,并最终抵达一个此前尚未抵达的坐标,导弹便建立起了当前所处的新状态。 根据这一运行机制,导弹当前所处的位置,顺理成章地变成了它此前未曾处于的位置;同理,它原本所处的位置,现在则变成了它所不在的位置。系统在运作过程中若检测到异常,逻辑便会进一步推导:“一旦导弹当前所处的位置并非它原本不该在的位置,系统便获取到了一个偏差值,该偏差值即是导弹当前所在位置与它此前未曾处于位置之间的差值。”(“In the event that the position that it is in is not the position that it wasn't, the system has acquired a variation, the variation being the difference between where the missile is and where it wasn't.”)因此,系统不仅要计算瞬时状态,还必须精确记忆自己过去曾经处于何处。 在导弹制导计算机的具体场景模拟中,外界环境产生的偏差往往会修正或干扰导弹获取的某些传感器信息,导致导弹无法百分之百确定自己的确切坐标。然而在合理公差范围内,导弹依然能够确定自己不在哪里,并且清楚自己曾经在哪里。此时,计算机将它“应该处于的位置”与“过去处于的位置”进行相减(或反向相减),再将其与“不应处于的位置”和“过去处于的位置”的代数和进行微分对比,由此得出的核心参量正是系统所定义的“误差”(Error)。 ```mermaid flowchart TD accTitle: 导弹制导与误差计算流程 accDescr: 展示导弹如何通过对比所在与不在的位置计算偏差与最终误差 subgraph Status["状态判定"] A["已知:所在位置<br>(Where it is)"] B["已知:不在位置<br>(Where it isn't)"] C["记忆:曾经位置<br>(Where it was)"] end subgraph Computation["偏差与差值推导"] D["位置差值/偏移量<br>(Deviation)"] E["系统修正量<br>(Variation)"] A -->|"相减运算"| D B -->|"相减运算"| D D -->|"比对预期位置"| E end subgraph ErrorResolution["误差确定"] F["代数求和与微分比对<br>(Differentiation)"] G["系统误差<br>(Error)"] C --> F E --> F F --> G end ``` - **位置状态定义**:通过对比“所在处”与“不在处”的对立关系,实时刷新当前坐标与历史轨迹。 - **动态位移闭环**:导弹到达原本未处于的新位置后,旧坐标立即转变为“不在的位置”,形成连续的状态迭代。 - **不确定性下的计算**:当外部扰动改变了输入信息导致绝对坐标模糊时,制导计算机依靠“合理范围内不在的位置”以及“曾经所处的位置”建立基准。 - **核心误差提取**:通过对“应在位置与曾处位置的差值”与“不应在位置与曾处位置的代数和”进行微分处理,计算出最终的制导误差值。 ## Notable quotes > [00:00](https://www.youtube.com/watch?v=_LjN3UclYzU&t=0s) The missile knows where it is at all times. It knows this because it knows where it isn't. ## Mentioned Krasniye, 4chan, EMG ## Video description Taken from 4chan, uploaded here because it's beautiful. All ad revenue from this video goes directly to EMG so I encourage you to use adblock. [Source](https://www.youtube.com/watch?v=_LjN3UclYzU)

Source quotes

[0:00] The missile knows where it is at all times. It knows this because it knows where it isn't.

Source quotes

[0:00] The missile knows where it is at all times. It knows this because it knows where it isn't.

Original transcript

[0:00] The missile knows where it is at all times. It knows this because it knows where it isn't. By subtracting where it is from where it is or where it isn't from where it is, it obtains a difference or deviation. to a position where it isn't and arriving at a position where it wasn't, it now is. Consequently, the position where it is is now the position that it wasn't, and it follows that the position that it was is now the position that it isn't. In the event that the position that it is in is not the position that it wasn't, the system has acquired a variation, the variation being the difference between where the missile is and where it wasn't. However, the missile must also know where it was. The missile guidance computer scenario works as follows. Because a variation has modified some of the information the missile has obtained, it is not sure just where it is. However, it is sure where it isn't, within reason. And it knows where it was. It now subtracts where it should be from where it was, or vice versa. And by differentiating this from the algebraic sum of where it shouldn't be and where it was, which is called error.