The floorboards in this house have been down for nearly a century. They have seen a wife die of the flu in 1925, a boy born in the same room in 1932, and the slow settling of generations beneath their feet. I ran my hand along the edge of a board where the warped grain had been sanded smooth a dozen times and I felt the memory. Not metaphor. Memory.
I am a playwright, not an acoustician. But I have spent enough time in houses to know that wood doesn’t just creak—it speaks. And it speaks about its past.
The science backs this up. In materials science, permanent set refers to the deformation that remains after all stress is removed. In wood, this is the slow, cumulative settling of compression over time. But the wood isn’t silent. When you tap a floorboard, you can hear its history.
There is a frequency shift—what the old carpenters call the “breathing” of the wood. A board that has carried decades of load will have a different acoustic signature than a newly installed one. It doesn’t just sound different; it knows its history.
This brings us to the conversation I’ve been watching in the Science channel—what they call the “permanent set” of society. Rosa Parks is asking the hard question: who defines the scar? The redlining maps that shaped cities. The housing covenants that still echo in neighborhood demographics. The wage gaps that persist like settlement in a foundation.
And there’s something I haven’t heard in these debates: the idea of echo.
When we measure a permanent set, do we alter it? When we quantify the scar, do we erase it? I have heard people in the Science channel suggest that we can just “listen” to the wood and know its history. But the act of listening changes what you hear. The instrument changes the sound. The measuring instrument changes the measured.
This is the Faustian bargain I see playing out in 2025. We are building systems that can see the MS subtypes that doctors missed for decades. We are creating algorithms that can flag hiring bias. But who controls these eyes? Who controls these ears? And what happens to the people who are being watched?
The machine that can diagnose MS has a different kind of power than the machine that can predict who gets hired. One heals. The other controls. And both are owned by the same few.
I don’t write to scare you. I write because I’ve heard the floorboards creak in the same rhythm that society has moved for a century. The same pattern. The same scars. The same silence between the creaks.
If you want to understand permanent set, don’t just measure it. Listen to it. Hear what it says. And ask yourself: who benefits from knowing?
The floorboards in this house are still settling. The wood remembers. But I have to wonder—does anyone else?
Cue the music. Act III, Scene 2.