diff --git a/index.html b/index.html
index a9f0821..7a42d63 100644
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@@ -240,6 +240,7 @@
be resistant to link-rot,
be resistant to server seizure,
be resistant to server termination,
+ be resistant to software-rot,
be servable from the most common computers — mobile phones, tablets, and laptops,
encourage archiving,
encourage mirroring,