this post was submitted on 21 Jun 2025
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Mildly Interesting
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This is for strictly mildly interesting material. If it's too interesting, it doesn't belong. If it's not interesting, it doesn't belong.
This is obviously an objective criteria, so the mods are always right. Or maybe mildly right? Ahh.. what do we know?
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As the other comment mentions, Japan is listed as not having a maximum, making this more or less lose relevance.
On top of that, the stated motivation for the two stairwell rule is fire safety, which is only really adjacent to earthquake safety. Other locations have figured out that two stairwells are very much not necessary to achieve appropriate levels of fire safety, and San Francisco would do very well to learn from them.