Humans do have a form of internal dead reckoning—but it drifts, depends on available senses, and is not a substitute for landmarks or safe navigation tools.
The learner calculates homeward-bearing and magnitude error on six novel coordinate traces and reports how an external reference changes those two errors.
This dossier explains the evidence and its limits. It is not a diagnosis, personal recommendation, assessment, clearance, performance promise or training programme. Actionable teaching appears only when the canonical Power record explicitly authorises it.
Complete bounded explanation
What this power means.
Capability to develop or express path integration in a declared context without inheriting broader claims.
What the current evidence supports
People can estimate position by integrating self-motion cues, but the estimate accumulates error and is highly dependent on vision, proprioception and motion dynamics.
How to observe or measure it without overclaiming
Homing distance/angle error in a declared cue configuration measures that task only; it does not measure general navigation or safety.
Myth
Activate your internal GPS
Metric
Cue-specific homing distance and heading error
Boundary
A good laboratory homing trial cannot establish reliable real-world navigation.
Negative and limiting findings
Vestibular cues alone produced chance or strongly biased performance in key conditions, and participants did not fully adapt to changing control dynamics.
Claims this evidence cannot support
Human dead reckoning is a compass
Navigate blind anywhere
Perfect internal GPS
Vestibular signals always tell distance
Individual tutorial · FULL SELF GUIDED TUTORIAL
How to learn this Power now.
The learner calculates homeward-bearing and magnitude error on six novel coordinate traces and reports how an external reference changes those two errors.
Get readyWork seated with no physical motion challenge.
Learn the method9 concrete steps teach the permitted method from start to finish.
See right and wrong4 comparisons show correct or safer execution beside common wrong or riskier choices.
PractiseComplete six new sequences twice a week for two weeks, divided equally between unaided and origin-visible trials. After 48 hours, use a fresh set. Increase turn count only after scoring remains stable.
Check progressFor each concealed sequence, sum horizontal x and vertical y displacement, use (−x, −y) as the homeward vector and calculate exact length √(x² + y²). Record the smaller protractor angle between estimated and exact arrows plus the absolute difference between estimated and exact lengths, separated by cue condition.
Authority boundary: Titan teaches a concrete low-stakes method step by step while keeping evidence and transfer claims bounded. The method is Power-specific; its actionability follows this treatment.
Citation roles are explicit. A source may support existence or trainability while simultaneously limiting transfer, certainty, generalisation or safety.
Akis Stavropoulos; Kaushik J Lakshminarasimhan; Jean Laurens; Xaq Pitkow; Dora E Angelaki · 2022 · Primary research
Current teaching and evidence boundary
The next gate remains visible.
External confirmation is required before higher-authority use because: a clinical, high-risk or regulated configuration; cultural, community-rights or affected-person authority; a restricted safety or legitimacy boundary.
A Power-specific tutorial is available at /tutorials/pwr-091/. It contains a plain-English method, 9 ordered steps, a worked example, right-versus-wrong comparisons, specific mistakes and corrections, practice, measurement, accessibility, stopping rules and evidence. Its self guided mode remains controlling.