• 2 Posts
  • 239 Comments
Joined 2 years ago
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Cake day: August 8th, 2023

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  • We should be paying for the trucks to use the roads when we buy products transported on the roads. Just like how we pay for the ships, ports, trains, and railroads used to transport other goods. The cost of transport should be part of the total product cost. Trucks should be paying road tax in proportion to the damage they do to the roads, and those costs should be passed to their customers, then to us. This is how it works with most other forms of transport.

    By moving the cost of the roads used by trucks to “everyone”, it makes trucking artificially cheaper and turns the cost of roads into an externality. If shippers had to pay those costs directly, I bet there would be many more goods shipped in more efficient ways.















  • Sorry bud, it sounds like you think I believe someone could train their body to become bullet proof. That’s not what I’m saying.

    I’m saying your argument is fallacious. Your conclusion is correct, but your argument fails.

    Also, you can’t just convert impact energy to pressure like that. I’m not familiar with the equation you’re using (is it just energy divided by the volume of a 0.22" sphere?), but I do know that impact is much more complex than that. It’s going to depend on both the bullet and the impact surface. Bullet geometry and material will change things, for example hollow points vs full metal jacket. Then there’s the impact surface, it’s hardness, strength, ductility, even viscoplasticity (materials can deform in different ways at the really high strain rates you get in an impact event). Think about the way Kevlar armor works. It dissapates some of the energy by stretching and breaking the strands of Kevlar and it reduces the impact force on a body by spreading it over a larger area and slowing the bullet over a longer distance. The person wearing the Kevlar armor still gets much of that energy delivered to their body.



  • I want to agree with you, but Elon is not stupid and definitely had something to do with the success of Falcon 9.

    What I think he is good at is having crazy innovative ideas and pushing his engineering team to make it some kind of reality. Being able to spend the time to listen to engineering, work through the issues, find ways to do things to make it work while still achieving the fundamental goals.

    My guess is that he’s not had the time to do that process and instead became the “do it my way or you’re fired” guy. Less Elon could be bad because they have less chance to talk sense into him. He certainly didn’t give up any control when he gave up his focus.


  • Do you need to have it broken down, step by step, why shooting yourself with a gun, is going to permanently injure you, likely quite severely?

    No, I mean the guy in the post demonstrates it pretty clearly. Going from 22 pellets to 22 short was basically going from “this won’t maim you” to “this could kill you at close range”. Could he have used something else between those energies to further develop a callous tough enough to stop a 22 short? Ehh probably not, but going on about how a 223 will blow off his leg isn’t a good argument for why this method won’t work. It’s either a strawman or a non sequitor depending how you present it.

    It’s like you’re making this argument: Paper will never stop a 223 bullet and here’s why. 10 layers stopped a small pellet sure, and 50 layers stopped a 22 pellet. But if you just make it 100 layers and shoot it with a 223 then it will explode because a 223 is at least 100 times more powerful and that’s only double the paper! No amount of paper could stop a 223.