<h1 id="instances-are-sometimes-classes">Instances Are Sometimes Classes<a aria-hidden="true" class="anchor-heading icon-link" href="#instances-are-sometimes-classes"></a></h1>
<ul>
<li>related: <a href="/wiki/notes/64ugzw02qgdm4umxjzj2mv1">Multi-Level Theory</a></li>
</ul>
<h2 id="t2024031617">t.2024.03.16.17<a aria-hidden="true" class="anchor-heading icon-link" href="#t2024031617"></a></h2>
<ul>
<li>is the solution to all my worrying about <a href="/wiki/notes/lcbxpavzjfy9p71s6ick0a7">Instances Are Sometimes Classes</a> literally just everything non-specific is a class? like topics are classes? things that are just instances:
<ul>
<li>documents</li>
<li>concrete individuals (but not characters/characterizations)</li>
<li>locations. (but what about <a title="Private" href="https://wiki.dendron.so/notes/hfyvYGJZQiUwQaaxQO27q.html" target="_blank" class="private">locale.North-America.coastal (Private)</a>?)
<ul>
<li>it depends: 
<ul>
<li>"coastal north america" taken as a whole is an instance</li>
<li>"coastal north-american locations" is a class</li>
</ul>
</li>
</ul>
</li>
<li>events (but not event types)</li>
</ul>
</li>
</ul>
<h2 id="t2024082012">t.2024.08.20.12<a aria-hidden="true" class="anchor-heading icon-link" href="#t2024082012"></a></h2>
<ul>
<li>put another way, non-leaf nodes in a hierarchy are classes
<ul>
<li>not all trees are hierarchies, see <a href="/wiki/notes/6nwlsa50uotwgilu6ba41yb">Abc Ontology</a></li>
</ul>
</li>
<li>topics are specific, and not necessarily classes (unless the topic is a class, say, "north american locations"). just because you have sub-topics or sub-whatever (i.e., hierarchy) doesn't make something a class. locations aren't classes, location-types or even location-collections are. 
<ul>
<li>for my dendron notes, I've overloaded topics, such that they are both classes and instances. </li>
</ul>
</li>
</ul>
<h2 id="related">Related<a aria-hidden="true" class="anchor-heading icon-link" href="#related"></a></h2>
<ul>
<li><a href="/wiki/notes/gpjt0tgwkb6khor1tcvlgmb">Work, Expression, Manifestation, Item</a></li>
</ul>
<hr>
<strong>Backlinks</strong>
<ul>
<li><a href="/wiki/notes/lcbxpavzjfy9p71s6ick0a7">Instances Are Sometimes Classes</a></li>
<li><a href="/wiki/notes/gpjt0tgwkb6khor1tcvlgmb">Work, Expression, Manifestation, Item</a></li>
</ul>

Instances Are Sometimes Classes

public-notes


Welcome! And beware!  

## Purpose

This vault is the "[[learning-in-public|ar.swyx.learn-in-public]]" part of my Second Brain. If you share some of my interests, please [reach out](https://djradon.github.io)! 

## Contents

- [[t]] my personal wikipedia
- [[idea]] (not necessarily mine)
- Resource Notes, including highlights, thoughts and metadata, for various things:
  - [[ar]] mostly articles, papers and web pages
  - [[book]]
  - [[community]]
  - [[course]]
  - [[event]]
  - [[game]]
  - [[loc]]
  - [[org]]
  - [[user]] 
  - [[prdct]] mostly software products, but also ontologies
  - [[recipe]]
  - [[video]] movies, tv episodes, youtube, etc
- [[vs]]
- [[wanted]]
- Some "Metadata Notes":
  - [[tags]] which may refer to any and multiple (or none) of the above
  - [[c]]: ways to categorize resources
  - [[p]]: ways to assert things about resources (mostly abandoned)

In terms of the [[t.km.zettelkasten]] method, this wiki is a commingling of literature notes with something @Sönke-Ahrens warned about: a "personal Wikipedia or a database" [^1]. 

In terms of [[t.tm.getting-things-done]], it's references, someday-maybe, next actions, and public projects.

## Beware!

This is a cluttered cupboard of jumbled jottings riddled with inaccuracies, confusion, and mistakes.

## What This Is Not

- evergreen-notes/digital-garden: for "synthesized" / original-ish publishable big-idea notes that should evolve over time, props to @andy-matuschak and @maggie-appleton
- blog: for "point-in-time" items to be shared: personal news, articles, etc.
  - e.g., [[ar.substack.carpe-noctem]]


[^1]: [[book.how-to-take-smart-notes]]  