Viewing profile — greysphere
greysphere
HN member- Joined
- Sat, Nov 01, 2014, 5:43 AM UTC
- HN karma
- 407
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- 134 items
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About greysphere
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Recent public activity
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Comment #48532467
It's pretty hard for someone to make something worth a billion dollars then sell it, because someone else could make the same thing and undercut you. We even have a word for the wa…
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Comment #48214116
Thanks, yes I think we had some confusion on the foo() vs parse() and I was referring to foo(). But even for the parse() example, the issue is the aliasing rules (and not the align…
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Comment #48211964
Maybe I'm misunderstanding. Here is what I'm trying to say. "Accessing an object which is not correctly aligned" - this is UB "As an example of this, take this code: ..." - this (c…
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Comment #48208408
The first example is dereferencing an integer pointer. That is a valid operation. Now if that pointer isn't valid (and being unaligned is one of many reasons it could be invalid) t…
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Comment #48204287
The examples aren't really undefined behavior. They are examples that could become UB based on input/circumstances. Which if you are going to be that generous, every function call …
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Comment #48175987
Absolutely. Interestingly, if there's a paper and it's not typeset in LaTeX, I can't help but start predjudiced. "Is this a Word document? These are not serious people."
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Comment #47987943
1) Because the people who contributed to the development of those other processes received fair market value for their work (for the most part). The vast majority of contributors t…
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Comment #47951830
With the old way of doing things you could spend energy to reduce errors, and balance that against the entropy of you environment/new features/whatever at a rate appropriate for yo…
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Comment #47177727
Another interesting thing about the steam engine is much of science in the 1800s was dedicated to figuring out how steam engines actually worked to improve their efficiency. That m…
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Comment #47062140
We made an AlphaGo like implementation for the card game Dominion. Certainly not the same number of cards but similar complexity. I have high confidence the same techniques would w…
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Comment #45563969
(1712) Newcomen Engine (1776) Watt Engine (1807) Atomic theory of Gasses (Dalton) (1807) Concept of Energy (Young) (1824) Carnot Cycle (1834) Ideal Gas Law (Clayperon) (1845) Relat…
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Comment #45561598
And in fact, the first engines were developed without a robust understanding of the physics behind them. So, the original version of 'engineering' is more closely to the current pr…
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Comment #45130549
Seems like it'd be relatively easy to allow one to 'smooth' their income over multiple years. Imagine paying 100 income at 40% tax year 1 and 0 income year 2. A scheme where you co…
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Comment #45130410
I don't understand how inflation and risk wouldn't/aren't priced in. You have $1000. You can: put it in your mattress, put it in 'safe' treasury bonds at inflation +a few percent, …
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Comment #45072103
Humans knowing how to add is still relevant even though calculators exist.
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Comment #44877004
The similarity between divine right of kings and inheritance is that an unearned is transferred via circumstances of birth. Your statements seem to extend that further: If you rent…
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Comment #44873107
There's no inherent right to anything, really. The statements in whatever declaration or philosophy are just arbitrary lines. Physical property rights are just as arbitrary as the …
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Comment #44847397
Real world efficiency factors are in the 90s and basal rates aren't constant. The model you're proposing is too artificial to draw conclusions about fasting over a short timeframe.…
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Comment #43618825
For all the phone developers out there: 5. Fixing a bug means you have to go through a re review of your marketing assets that haven't changed in 3+ years and there's a non zero ch…
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Comment #41436760
Thanks for the explanation of some of the interactions I was missing! It's amazing the complexity of what's basically the simplest setup one could think of.
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Comment #41419416
In a classical view of 2 particles accelerating towards each other v x r will always be 0 so B will always be 0 even if the particles are accelerating towards each other. I believe…
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Comment #41418078
> You can't just plug numbers into Coulomb's Law for this case, because Coulomb's Law by itself is not relativistically correct. Sorry if this is a bit pedantic, but as someone try…
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Comment #39499410
Appreciate your engagement. I think it very much depends on your situation. I personally look to her as a role model who's demonstrated the value of strikes and collective action i…
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Comment #39499200
Her credentials are her ability to rally support/interest in climate issues. What credentials would satisfy you? Folks with PhDs and political accolades have been speaking the same…
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Comment #39222865
The AI is based on Alpha Zero and developed by Keldon Jones (known for the nn Race for the Galaxy AI). I worked on the game, happy to answer any questions!