Brian Potter: belief

Transcript context

…This raises a question that I actually wanted to ask you, which is in your post about why there aren't automatic brick layers. It was a really interesting post. Somebody left in an interesting comment saying that bricks were designed to be handled and assembled by humans. Then you left a response to that, which I thought was really interesting. You said, “The example I always reach for is with steam power and electricity, where replacing a steam engine with an electric motor in your factory didn't do much for productivity. Improving factory output required totally redesigning the factory around the capabilities of electric motors.” So I was kind of curious about if you apply that analogy to construction, then what does that look like for construction? What is a house building process or building building process that takes automation and these other kinds of tools into account? How would that change how buildings are built and how they end up looking in the end? I think that's a good question. One big component of the lack of construction productivity is everything was designed and has evolved over 100 years or 200 years to be easy for a guy or person on the site to manipulate by hand. Bricks are roughly the size and shape and weight that a person can move it easily around. Dimensional lumber is the same. It's the size and shape and weight that a person can move around easily. And all construction materials are like this and the way that they attach together and stuff is the same. It's all designed so that a person on site can sort of put it all together with as comparatively little effort as possible. But what is easy for a person to do is usually not what is easy for a machine or a robot to do, right? You typically need to redesign and think about what your end goal is and then redesign the mechanism for accomplishing that in terms of what is easy to get to make a machine to do. The obvious example here is how it's way easier to build a wagon or a cart that pulls than it is to build a mechanical set of legs that mimics a human's movement. That's just way, way, way easier. So yeah, I do think that a big part of advancing construction productivity is to basically figure out how to redesign these building elements in a way that is really easy for a machine to produce and a machine to put together. One reason that we haven't seen it is that a lot of the mechanization you see is people trying to mechanize exactly what a person does. You’d need a really expensive industrial robot that can move exactly the way that a human moves more or less. What that might look like is basically something that can be really easily extruded by a machine in a continuous process that wouldn't require a lot of finicky mechanical movements. A good example of this technology is technology that's called insulated metal panels, which is perhaps one of the cheapest and easiest ways to build an exterior wall. What it is, is it’s just like a thin layer of steel. Then on top of that is a layer of insulation. Then on top of that is another layer of steel. Then at the end, the steel is extruded in such a way that it can like these inner panels can like lock together as they go. It's basically the simplest possible method of constructing a wall that you can imagine. But that has the structural system and the water barrier, air barrier, and insulation all in this one really simple assembly. Then when you put it together on site, it just locks together. Of course there are a lot of limitations to this. Like if you want to do anything on top of like add windows, all of a sudden it starts to look quite a bit less good. I think things that are really easy for a machine to do can be put together without a lot of persistent measurement or stuff like that in-field. They can just kind of snap together and actually want to fit together. I think that's kind of what it looks like. What would the houses or the buildings that are built using this physically look like? Maybe in 50 to 100 years, we'll look back on the houses we have today and say, “Oh, look at that artisanal creation made by humans.” What is a machine that is like designed for robots first or for automation first? In more interesting ways, would it differ from today's buildings?…

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