Here and There: the Multilocation Trilemma

Here and There: the Multilocation Trilemma

🎙 Damiano Costa 👥 5K 📅 April 14, 2020 ⏱ 40 min 👁 543 📄 expert opinion 🧭 2026-08-17
Available in: English (current) Français

Keywords

multilocationexact locationweak locationmetaphysicslocation theory

Summary

In this talk, Damiano Costa presents the ‘multilocation trilemma’, a problem concerning the possibility of an entity being exactly located at multiple places simultaneously. He begins by distinguishing between exact and weak location, and explores attempts to define one in terms of the other. Defining weak location via exact location leads to the principle of exactness, which is problematic. Defining exact location via weak location, as per Josh Parsons, implies functionality, ruling out multilocation. Accepting both as primitives leaves plausible principles like weak location as brute necessities. Costa then examines Anthony Eagle’s definition of exact location in terms of containment and filling, which aims to allow multilocation. However, Costa argues that Eagle’s definition fails because it rules out nested multilocation, leads to overgeneration of exact locations for complex objects, and makes extended simples impossible. Thus, the trilemma persists, and Costa suggests that he and his collaborator are exploring option B, treating both notions as primitive.

155 words

Critical Evaluation

Value of the Information & Strength of the Argument

The talk provides a clear and rigorous analysis of the concept of location and the challenges of defining it in a way that accommodates multilocation. The argumentation is systematic, presenting the trilemma and then evaluating a proposed solution. The speaker effectively uses examples and diagrams to illustrate abstract concepts. The value lies in its contribution to the ongoing debate in metaphysics, offering a critical assessment of existing definitions and highlighting the difficulties in providing a satisfactory account.

Scientific Rigor, Source Quality, Title Accuracy

The talk demonstrates scientific rigor by engaging with the relevant literature, including works by Josh Parsons and Anthony Eagle. The speaker clearly states the assumptions and definitions used. The title accurately reflects the content, focusing on the trilemma of multilocation. The talk is part of an academic workshop, suggesting a high level of expertise. However, as a presentation, it lacks the detailed citations and peer-review that a published paper would have.

163 words

Title / Content Match

The title accurately reflects the content, which addresses the trilemma of defining location in the context of multilocation.

Quality & Reliability

8/10

The talk presents a rigorous philosophical argument, drawing on established literature and formal definitions. The speaker is an academic philosopher, and the content is well-structured. However, it is a presentation of ongoing research, not peer-reviewed, and the video is a recording of a workshop talk.

Key Moments

Cited Sources

  • Anthony Eagle's papers on location — Mentioned as the source of the definition of exact location in terms of containment and filling.
  • Josh Parsons' definition of exact location — Mentioned as an attempt to define exact location in terms of weak location, which implies functionality.

Concurring Sources

  • Stanford Encyclopedia of Philosophy: Location and Mereology — Provides background on the concepts of exact and weak location.

Dissenting Sources

  • Anthony Eagle's defense of his definition — Eagle might argue that his definition successfully captures our intuitions about location, despite the objections raised.

Contribution & Novelties

The talk presents a novel trilemma for the definition of location, synthesizing existing literature and offering a critical evaluation of Eagle’s solution. It highlights the trade-offs in defining location and suggests that treating both notions as primitive may be the most viable option.

Pour aller plus loin :

  • Metaphysics of location (Stanford Encyclopedia of Philosophy) — Overview of the philosophical debate on location.
  • Anthony Eagle’s research page — Access to his papers on location.
  • Josh Parsons’ website — Includes his work on location and persistence.

85 words

Radar Profile

The radar profile shows high scores in information quantity, quality, technical level, and reliability, indicating a dense and rigorous philosophical presentation. The talk is highly specialized, with a strong focus on formal definitions and arguments.

Reliability 8/10