<h1 id="hasvalidityperiod">hasValidityPeriod<a aria-hidden="true" class="anchor-heading icon-link" href="#hasvalidityperiod"></a></h1>
<ul>
<li><a href="/wiki/notes/LFLnjQiaCume4luLAUdEu">hasDomain</a> <a href="/wiki/notes/hd5CwMNKVH4WdPtzvlK6e">Statement</a></li>
<li><a href="/wiki/notes/ag9ODyk8AAhiSaxw919y5">hasRange</a> <a href="/wiki/notes/rT9j2ouO7zu9Z2CHpgtUD">TimePeriod</a></li>
</ul>
<h2 id="notes">Notes<a aria-hidden="true" class="anchor-heading icon-link" href="#notes"></a></h2>
<ul>
<li>until there's a standard for expressing "infinite interval boundaries", I'm just going to follow <a title="Private" href="https://wiki.dendron.so/notes/hfyvYGJZQiUwQaaxQO27q.html" target="_blank" class="private">@Meno-Hochschild (Private)</a> and <a href="https://stackoverflow.com/questions/48696238/is-it-possible-to-represent-and-open-ended-time-interval-with-iso-8601">use a "double dot" on either side of the solidus</a></li>
<li>of course, if there's only a single date-fragment, you can assume that's the start time, and end time is either open or unknown</li>
<li>it we be nice to be able to express "validity until at least" and "validity since at least", maybe can be captured nicely with "hasValidityPoint"</li>
<li>kinda need "hasInvalidityPeriod" and "hasInvalidityPoint" too</li>
</ul>
<hr>
<strong>Backlinks</strong>
<ul>
<li><a href="/wiki/notes/i1ZGKySBDcqggykfeWxh0">hasValidityPoint</a></li>
<li><a href="/wiki/notes/J71YbzXWnoIyTrr6qC8CX">Derek Ardolf (ScriptAutomate)</a></li>
</ul>

hasValidityPeriod

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":
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  - [[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]]  