lkozma

26 ms·

211.
Good sleep, good learning, good life(supermemo.com)
2 points by lkozma 16y ago|0 comments
212.
by lkozma 16y ago
All great points, I would add one more: forget the alarm clock. If you can afford a variation of 30 mins - 1hour in wake up time, get up when you wake up naturally. Access to natural sunlight in the morning is best. It's amazing how precise
213.
by lkozma 16y ago
maybe he meant predecessor of Unity.
214.
by lkozma 16y ago
Yes, it really shows the disconnect between programmers and users. But to me this write-up also shows that there can't be a one-size-fits-all user interface. If the interface would be changed to conform better with the mental model of these
215.
by lkozma 16y ago
Yes, I'm from near the place these dancers are from (in Romania).
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by lkozma 16y ago
The specific information which was not known and is known after the foreigner's speech is that "everyone knows that everyone knows that everyone knows that (repeated n or more times) there are people with blue eyes." This was known only up
217.
by lkozma 16y ago
They know that everyone knows that there are blue eyed people. What they don't know is that everyone knows this. In other words, they don't know that everyone knows that everyone knows that there are blue eyed people. Alice thinks like this
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by lkozma 16y ago
Incidentally, this is why dictatorships don't allow gatherings of people (or free broadcast media). Everyone knows the regime is bad but not everyone knows that everyone knows etc. When the whole hierarchy collapses, revolutions break out.
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by lkozma 16y ago
Solution 2 is correct, Solution 1 is wrong because there is always transfer of information in the stranger's speech. Suppose there was only 1 blue-eyed person: [before]: Not everyone knows there exist blue eyed people (the blue eyed
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by lkozma 16y ago
A plausible explanation I read about the wage gap (if there is any, contrary to this headline) blames it on the fact that wages are bounded from below (minimum wage) but not from above. If you have two groups that would normally have the sa
221.
by lkozma 16y ago
I want to use this and I can manage with the clunky interface, the small storage and I don't need too many features, but I really hate the "viral" sentences added after the message, I thought that one ended with Hotmail. People can figure o
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by lkozma 16y ago
Doing cube root by hand is more tricky though.
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by lkozma 16y ago
Yes, but if we have hash(plaintext + site_specific_salt), then even if I use the same password for different sites and the hash from one of them is intercepted, it still takes a while until the others will also be compromised. I didn't say
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by lkozma 16y ago
The hashing should be done in the client's browser. The plaintext password should never reach the server (which is capable of sending emails).
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by lkozma 16y ago
You are right, I'm not aware of any such study either. What I meant is just that there is no need to feel guilty for whatever amount of sleep feels right, regardless of what society says in the name of efficiency and productivity. It's ok t
226.
by lkozma 16y ago
It's a false dichotomy, on a lot of hard problems progress is a step function, and you often "get much done" while sleeping. I.e. when you wake up well rested you see things from a different angle. If it's something like chopping wood, su
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by lkozma 16y ago
It's the usual lemon market argument though: clients can't discern quality reliably so they go for price only, which drives quality out of the market.
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by lkozma 16y ago
"95% of all messages are. "Can I call you?" It's hard to separate cause and effect though, 95% of my messages are "Can I call you?", sometimes repeated 3-4 times, simply because the system often fails to reliably transmit anything longer
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by lkozma 16y ago
Or what is the first day that is not known for anything? http://en.wikipedia.org/wiki/Interesting_number_paradox
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by lkozma 16y ago
True, there is the engineering aspect, but I didn't mean that, I was talking about the same fundamental philosophical question you were. That is, "are there problems for which we can easily verify a solution but not easily find one". P=?NP
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by lkozma 16y ago
Well, n^3 or n^4 might already be considered impractical in many situation and even linear time algorithms might have huge constants that make them impractical. I agree about the philosophical questions, but don't they also rely on the prac
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by lkozma 16y ago
There's a funny poll on P=?NP that William Gasarch conducted among computer scientists: http://www.cs.umd.edu/~gasarch/papers/poll.pdf Some argue that the question is not as important as it is widely believed to be (see Sariel Har-Peled's
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by lkozma 16y ago
I was convinced while I read it that it was a parody, something similar to the BIC ballpoint pen review on Amazon or the previous piece on quora, where someone explained the practical limitations of becoming Batman in real life. Then I look
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by lkozma 16y ago
I think this quote is often used beyond its range of validity. There is value in pointing out counterexamples when someone presents a general theory that you think is false.
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by lkozma 16y ago
Or maybe not: http://cscs.umich.edu/~crshalizi/weblog/491.html
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by lkozma 16y ago
Sample of two: within reasonable limits, the harder the surface, the better I sleep. Best sleep I have is usually on a $5 polyfoam mattress on the floor. Best chair for me: $10 exercise ball. So maybe time to call the bluff of the fancy-mat
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by lkozma 16y ago
It could be understood as laser-like (i.e. parallel, collimated, non-diverging etc.) focus (i.e. mental focus, attention etc.). In this case the expression is correct: it just means "non-diverging attention" and doesn't say anything untrue
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by lkozma 16y ago
Incidentally, I have recently (re)discovered fluxbox. It's a breath of fresh air compared to how bloated both Gnome and KDE have become.
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by lkozma 16y ago
Maybe because bookmarking is a bit like TODO apps: not technically difficult to do but everyone hates using someone else's system. Of course, Delicious was the exception :)
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by lkozma 16y ago
In most Eastern European countries (and in parts of South America, I heard) whole industries grew out of building clones of these machines, usually with a bit more memory but otherwise similar specs. I started programming on one of these wh

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