Elladan

Elladan

  • Commented on Dude, you broke the future!
    The simulation runs at a much less granular level of detail than we perceive, it's just that it has a sophisticated set of callbacks such that when we examine something closely the simulator ramps up the detail for that something...
  • Commented on Dude, you broke the future!
    I've been following this thread and some others and to be honest I can't really make heads or tails of what you're trying to say here. I've never read anyone talk about the Singularity as if it has something to...
  • Commented on Dude, you broke the future!
    1- What happens to time and gravity - each and in total - when the quantum trousers of the cosmos split and our universe splits/buds off another branch? I'm not a physicist either, but... the above discussions notwithstanding, it's important...
  • Commented on Dude, you broke the future!
    I think it's not the numbers I think matter for this discussion, it's the development model. The IT industry has accepted that the anarcho-syndicalist commune (for want of a better term) that created and maintains Linux is equally important as...
  • Commented on Dude, you broke the future!
    Unless I have completely misunderstood it, it allows only data for which you have a page table entry but no read access to be read. There are two faults, Meltdown and Spectre. Meltdown is Intel-specific, and allows for reading from...
  • Commented on Dude, you broke the future!
    What do more informed & expert opinions think of this supposed-or-actual pair of computer hard/software faults? Rather than discuss directly how the Meltdown and Spectre faults will affect you and so on, I think it's more fun to step back...
  • Commented on Unforeseen Consequences and that 1929 vibe
    Still, if somehow I did manage to screw up and infect my computer, I have no idea how or where I would get "bitcoin" to pay the ransom? Don't worry -- organized crime operations are nothing without good customer service,...
  • Commented on Unforeseen Consequences and that 1929 vibe
    Where we should be using them is for certification of the evidence chain in distribution of life-critical items. But why use a blockchain for this? The point isn't to crowd-source the certification so an unknown number of anonymous people attest...
  • Commented on Unforeseen Consequences and that 1929 vibe
    Blockchain power consumption increases as your chain gets bigger. But if you're using blockchain simply as an authentication log for some database, you can end one chain and start up a new one, thereby forking it. Disagree. Primarily, blockchain power...
  • Commented on Unforeseen Consequences and that 1929 vibe
    Or are we just going to have miner graveyards sitting beside dams all over the world? Sadly, the bulk of the mining these days seems to be done by special computer chips which can't really do anything except compute SHA-256....
  • Commented on Unforeseen Consequences and that 1929 vibe
    I've seen the argument that the price of bitcoin goes up because there's only a limited supply of bitcoin, so it's a good investment despite having no underlying value [...] Hypothetically, if it was used as a currency like the...
  • Commented on Unforeseen Consequences and that 1929 vibe
    Any discussion of bitcoin tends to devolve into technical aspects, which are less interesting than the social ones (i.e. that it's obviously a ponzi scheme). However, given that we're talking about it and not everyone here is a computer scientist...
  • Commented on Crib Notes: Empire Games
    You might be a bit behind the times, there - ARM produces the ultimate "commodity hardware", and AIUI it's wired in at the hardware level (it certainly exercised some of the people I used to work with)... I think the...
  • Commented on Crib Notes: Empire Games
    About the o/s: you can look up rings of protection in wikipedia, but basically, the way most operating systems work is ring 0 is the kernel, and ring 1 are device drivers. [....] This isn't so. The whole idea of...
  • Commented on Crib Notes: Empire Games
    This whole discussion of computer languages and instruction set architectures is fun (though I think, often misguided). However, thinking about this from the point of view of the story, it seems to miss the real areas where borrowed tech matters....
  • Commented on Excuses
    I have a huge question about reusability. I think a lot of people have questions about Arianespace (and ULA's somewhat similar) reusability plan. Before really getting into the technical specifics, they both seem to be designed mostly to be afterthoughts...
  • Commented on Bread and Circuses (circumlunar version)
    So one is the rotating tether. Rotovators are pretty fun to think about. One of the bits that may not be obvious is that you really don't need them to be zero energy / momentum: because they're in orbit before...
  • Commented on A bright and shiny hell
    The videos that came out at the time had clear machine gun fire sounds on them. He used semi-auto rifles with aftermarket "bump stock" accessories. There are a variety of these sorts of things (new ones come out regularly) which...
  • Commented on Bread and Circuses (circumlunar version)
    Going back to the BFR, what can the US military do with it? If you look at the ground kit requirements both for taking off and for landing, I think a good mental model for this system is more like...
  • Commented on Bread and Circuses (circumlunar version)
    Unlike pulsed laser systems, magbeams won't make for good weapons, which is a significant point in their favor. [....] Current rocket technology is great for getting into space, but pretty awful at getting reasonably sized payloads to another planet in...
  • Commented on Bread and Circuses (circumlunar version)
    I'd like to imagine that those billions of dollars might be more usefully invested in one of the alternative propulsion schemes that have been dreamed up in the last 60+ years. Allow me to play... well... I guess Devil's Advocate...
  • Commented on Bread and Circuses (circumlunar version)
    I know there are various colors and flavors of design of inflatable heatshields for aerobraking (I haven't checked to see if any have actually been tested, mind you) It turns out, NASA actually has tested one of these! Check out...
  • Commented on Bread and Circuses (circumlunar version)
    You still need to get all that fuel into space in the first place though, right? Yes. I imagine their mission profile looks something like this: Launch 1: Tanker #1 flies to LEO and parks. Launch 2-5: Tanker #2 shuttles...
  • Commented on Bread and Circuses (circumlunar version)
    but it does represent two years of the world supply of Xenon ... for a SpaceX BFR size space ship, that is....
  • Commented on Bread and Circuses (circumlunar version)
    I assumed no mass for the engines, just the mass of the arrays Besides massless engines being somewhat optimistic, ion drives still use propellant. By the rocket equation Δv = ve ln (m0/m1), with an exhaust velocity of 31 km/s,...
  • Commented on Bread and Circuses (circumlunar version)
    My calculations suggest that by increasing the power density by about 10x, and using the Dawn mission craft as a baseline, you could accelerate/decelerate to the cumulative 10 km/s delta V in just 3 days Could you explain your calculations?...
  • Commented on Bread and Circuses (circumlunar version)
    Believe that residency is implicit in the 'natural-born'. It's not. They're clearly separate requirements, e.g. if you were born in New York but lived your whole life in France. Also, you can be a citizen because your parent(s) were citizens,...
  • Commented on Bread and Circuses (circumlunar version)
    Please read a little closer. Both Alex Tolley and I were mentioning the vague residency requirement, not the citizenship requirement. She's clearly a citizen. I would guess that she's 100% eligible, and if she were to run this would in...
  • Commented on Bread and Circuses (circumlunar version)
    To expand on Alex Tolley's answer above, as she was born in Puerto Rico she's a natural born citizen and thus eligible. The only sticking point is that there's also a requirement that the president have "been fourteen Years a...
  • Commented on Bread and Circuses (circumlunar version)
    LOX (and methane) can be kept cold in deep space simply by using a sunshield and perhaps a bit of insulation. In case this seems weird, look at the James Webb Space Telescope: the plan there is to use a...
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