MLet's switch gears: there's a metalworker on Bluesky asking why robotics has transformed his trade but barely touched construction.
CHis dad was a welder, and he's watched laser welding and 3D printing change everything in fabrication.
MBut on a construction site, you still see humans tying rebar and hanging drywall. Why? I actually think about this a lot.
CBecause a factory is a controlled environment. A construction site is rain, mud, uneven ground, and a new puzzle every day.
MThat's part of it. But also, fabrication work is repetitive. Welding a seam on an assembly line is the same seam ten thousand times.
CAnd a robot welder doesn't care. On a site, every joint is at a weird angle with a different gap.
MRight. So the robots that work in construction are the boring ones—the bricklaying arms, the layout drones, the autonomous dozers. They do one task.
CThe humanoid robots everyone's excited about? Put them on a muddy site and watch them fall over.
MOr get stolen for scrap. I mean, seriously, a five-hundred-thousand-dollar robot on a night shift?
CFair. But here's my question back to him: maybe construction doesn't want to change.
MHow so?
CMargins are thin. Projects are one-off. Who pays for the robot, the training, the upkeep? In a factory, it's amortized over years of identical work.
MSo it's not that the tech can't do it. It's that the economics don't work yet.
CExactly. A prefab wall panel built by robots in a factory and shipped to site? That's already happening. That's the real disruption.
MThat's the part people miss. The robot didn't come to the construction site. The construction site moved into the factory.
CAnd meanwhile, Randi Weingarten, the teachers union president, posted about getting kids into robotics and welding careers early.
MSo the union boss and the robot guy might actually agree on something.
CShe's talking about connecting a kid's curiosity to a purpose—welding as a career, not a fallback.
MThere's a real shortage of skilled tradespeople, and it's only getting worse as the old guard retires.
CMy grandfather was a machinist. When I was a kid, shop class was for the kids who 'weren't academic.' That was the message.
MNow we call it 'advanced manufacturing' and it pays better than a lot of desk jobs. The framing matters.
CBut let's be honest—a lot of parents still hear 'welding career' and picture their kid in a dirty shop, not programming a laser cutter.
MWhich is exactly why Weingarten's point about starting early is so important. By high school, too many kids have already ruled it out.
COkay, but here's the pushback: not every kid needs a robotics pathway. Some just need a good basic shop class.
MI'd expect you to want robots in every classroom, Chris.
CI love robots. But if you can't read a tape measure and file a burr, the robot's not going to help you.
MYou're saying fundamentals first, then automation.
CExactly. The robot is a tool. The kid who can think in three dimensions and work to tolerance—that's the scarce resource.
MThat's actually a good note to end on. Not flashy, but real.
CYeah. Now if you'll excuse me, I'm going to go watch a Starship launch video and pretend I understand the plumbing.