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0 pointsjfoutz17y ago0 comments

I've built the gingery furnace, an poured aluminum twice. It's hot and scary. I've made arrowheads out of old glass bottles using a broken antler.

I think you're underestimating how spectacularly hard it is to make anything without tools. Go into the woods naked, and show me how to make a bellows.

I'm pretty sure i could do it, if i could keep my glasses, and my shoes and a knife and a bunch of food. I think i could run down a deer, if all the other people i'd be in competition with didn't kill me after i was 10 miles into the run.

I don't think steel matters very much. Sanitation, clean water, lots of food.

"If society knows about existence of a technology, reproducing it shouldn't be difficult. The hardest part about progress is inventing brand new things."

I disagree. Once upon a time, people drove cars on the moon. Should be a n easy thing to reproduce eh? heck, we've got 40 years of technology on them. The hardest part about progress is convincing other people to do what you want them to do.

The gingery books are FANTASTIC. i'd highly recommend them to ... everyone.

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blackguardx17y ago· 3 in thread

I guess I meant that coming up with new ideas is hard. Invention is hard.

In the hypothetical case that everything is gone tomorrow, the ideas still exist. All we need to do is implement them.

I'll explain it in CS terms. What would happen if all copies of the quicksort algorithm were destroyed overnight? Someone would spend a few hours and write another one because he/she knows about the algorithm. It would take about an hour.

Consider the further case that no one on earth knew that the quicksort algorithm even existed. How long would it take to be duplicated? Months? Years?

How did someone get the idea to smelt metal? It took thousands of years. Now that we know that smelting exists, all that is left is finding a way to do it. Many people in modern society will have the knowledge to rebuild technology. I would argue that expanding technology is much harder than rebuilding technology.

As to pouring molten metal, sure it is scary at first, just like driving a car. After much practice, like most things, it ceases being scary.

mcav17y ago

> I'll explain it in CS terms. What would happen if all copies of the quicksort algorithm were destroyed overnight? Someone would spend a few hours and write another one because he/she knows about the algorithm. It would take about an hour.

That's like saying you just woke up in a Blacksmith's shop, with the anvil and fire ready. That's the last mile, which isn't the hard part. Compare it to destroying all traces of CPUs and computer hardware/software. Okay, now go fabricate a processor.

blackguardx17y ago

I don't think I am explaining myself well.

What I mean to say is that once you know about an invention, reproducing it is much less difficult than actually inventing it. Do you disagree?

In high school, I was obsessed with metalworking and built several forges. I played around with melting metal and forging blades. I created charcoal. I read everything I could get my hands on about blacksmithing. I read a lot of fiction books about rebuilding post-apocalyptic societies.

I guess I have a different perspective.

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tesseract17y ago

Okay, now go fabricate a processor.

Step 1: Go and build a glassblowing shop.

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