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	<title>Discworld &amp; Terry Pratchett Wiki - User contributions [en]</title>
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	<updated>2026-05-03T08:41:14Z</updated>
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	<entry>
		<id>http://wiki.lspace.org/index.php?title=Uncertainty_Principle&amp;diff=31067</id>
		<title>Uncertainty Principle</title>
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		<updated>2020-06-25T22:13:07Z</updated>

		<summary type="html">&lt;p&gt;Old Bob: Added explanation of uncertainty, but I&amp;#039;m not sure...&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;No one is sure what it is. If anyone finds out for sure, please state it here and then delete the page (since it will no longer exist).&lt;br /&gt;
&lt;br /&gt;
[[Albert]] has a concept which he explains to [[Death]] with the example of a [[Greebo|cat in a box]] which may or may not be alive. Only by opening the box to observe the cat can this be certain. Death disapproved strongly of this.&lt;br /&gt;
&lt;br /&gt;
Variant explanations so far voiced include:&lt;br /&gt;
&lt;br /&gt;
*&#039;&#039;You can either know where you are or what you&#039;re doing, but never both at the same time.&#039;&#039;&lt;br /&gt;
*&#039;&#039;You can either know who you are or what you&#039;ve drunk, but...what was the question?&#039;&#039;&lt;br /&gt;
&lt;br /&gt;
[[Category:Discworld concepts]]&lt;/div&gt;</summary>
		<author><name>Old Bob</name></author>
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