Housing seems like a bad fit for 3D printing. The main value proposition of 3D printing is that it is infinitely customizable, so a single printer can mass produce an indefinite number of unique components.

But housing doesn’t really need to be unique. In fact, unique designs are disfavored because each new design needs to be tested and verified by an architect. Instead, housing is built up out of standardized parts, to standardized designs.

But you don’t need, and probably don’t want, a 3D printer to print out the same components over and over. Instead, it’s cheaper and easier to just stamp them out with a dedicated machine (e.g. cement bricks) and quickly assemble them onsite.

“Free” speech doesn’t mean “no money”-free, it just means not restricted by content or viewpoint.

That’s is definitely not the case. Battery technology on utility scale has barely budged for years, and it’s still far from clear whether a practical solution will even be physically possible.

“the scientific consensus that we have roughly a decade left to initiate the changes needed to preserve a living planet”

That isn’t a scientific consensus. In fact, I’m not aware of a single scientist anywhere who believes this.

Sure. But there’s a big difference between not there yet and “we’re not getting anywhere.”

It also depends on how long you’ve been following climate change. I’m old enough to remember when US emissions were skyrocketing. So it’s quite hopeful to see how much things have changed.

US emissions have already dropped by 20% and are falling fast. EU emissions have dropped by 34%. It’s already well underway.

You ask all these questions, seemingly unaware that they all have perfectly reasonable answers.

So the changeover to renewables will mean cutting corn production by a third. Very cool.

Dongle might be the wrong word, because what I’m talking about can’t really break.

My portable battery comes with a wire. One end of the wire is a standard USB port. The other end of the wire splits into three: one for iPhone, one for standard USB, and one other. Wires like this are available in any gas station and cost may $5-10 bucks.

So what? If different charging bricks were required, I could see the advantage of eliminating all that waste. But here it’s literally just an extra dongle on the end of a wire cord. Why make phone manufacturers redesign their charging interface instead of just making cord manufacturers include that extra bit?

I feel like I’m missing something here.

I’m confused. The only difference between an iPhone charger and Android charger is the cord, right? The little block is the same either way. Why not just require every cord to have both adapters on the end?

And yet here you are, arguing with randos on the internet.

With that logic, you must be very bad at spotting emerging companies and technologies.