Reality has a surprising amount of detail (2017)
And if you think stairbuilding is complex, you should look into handrailing [0]<p>The money quote from the article: &quot;I’ve learned that the correct way to build a house is to design the handrail first, then design the stair, and the rest of the house will follow.&quot;<p>Part of the reason you don&#x27;t notice the complexity of everyday things is that humans have spent thousands of years perfecting the details and methods that let you take your stairs and handrails for granted. And, like, 90% of everything else.<p>The McMaster-Carr catalog isn&#x27;t &gt;2&quot; thick because they&#x27;re trying to confuse you. It&#x27;s that thick because everything they sell solves a different problem, that somebody worked out the details in years ago, and we live in a world where the  experience and solutions embodied in every part gets mass produced and delivered the next day for the cost of mere money.<p>And then there are manufactured handrail parts, which are a grotesque and simplified perversion of a properly carved handrail (discussed in the link). But at least regular people can afford a handrail for their stairs for safety too.<p>[0] <a href="https:&#x2F;&#x2F;www.thisiscarpentry.com&#x2F;2009&#x2F;07&#x2F;15&#x2F;drawing-a-volute&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.thisiscarpentry.com&#x2F;2009&#x2F;07&#x2F;15&#x2F;drawing-a-volute&#x2F;</a>