Why? Why not?
Based off the random filter idea of SS found at TW-Scripts...
It is a tiddler designed to be used in the story river as the main focus
(for reading), so I haven't seen any issues with it being triggered by
other wiki activity that would cause a tiddler refresh and a new random
tiddler display (since it wouldn't be open during any editing). The
tiddler gets opened by a button with a tm-navigate message in the top or
sidebar. The two buttons in the tiddler itself cause a new random tiddler
to display by writing "Next poem" to a field ( zzdatesort ) of the tiddler
which it is transcluded in the buttons text, causing a refresh of the
tiddler and triggering the random filter of the list widget controlling the
random tiddler display.
\define randpoem()
<$set name=r1 value=<<now 0XXX>>>
<$set name=r2 filter="[<r1>splitregexp:title[]rest[]join[]]" >
<$set name=nth filter="[tag[*poem]count[]multiply<r2>divide[100]ceil[]]">
<$list filter="[tag[*poem]nth<nth>]">
<div style="text-align:center;"><$view field="title"/></div>
<$transclude field="text" mode="block"/>
</$list>
</$set>
</$set>
</$set>
\end
<div><$button set="!!zzdatesort" setTo="Next poem"
>{{!!zzdatesort}}</$button></div>
<<randpoem>>
<$button set="!!zzdatesort" setTo="Next poem" >{{!!zzdatesort}}</$button>
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