saeranv

38 ms·

361.
by saeranv 6y ago
Here's one that I learned from HN years ago ( https://news.ycombinator.com/item?id=18463449 ) Rule of three: If you want to compare two things (i.e if code A is faster then code B), then measure each three times. If all
362.
by saeranv 6y ago
That seems right, the advisor/subject-matter/interest mismatch seems to be at the core of a lot of his struggle.
363.
by saeranv 6y ago
Interesting that he doesn't seem to debate or reconcile how painful he found working on his PhD, with his decision to rejoin academia. He makes the persuasive point that he doesn't have the freedom to pursue long-term research in
364.
by saeranv 6y ago
>> When you choose something, dont quit when you start to doubt if theres a better way. You aren’t actually equipped to make that evaluation until you have tried and succeeded/failed with your current path. This is something I le
365.
by saeranv 6y ago
>> “All of this said, chronic procrastinators will procrastinate just about anywhere,” Pychyl adds. “That’s just something that’s inherent. It’s just your disposition, and it’s not going to change overnight.” Well that's depressi
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by saeranv 6y ago
They aren't equally difficult problems. From a thermodynamic perspective, all processes in your environment deteriorate into either waste heat, or is moved outside your environment with work.Low-cost heating is easily available, wherea
367.
by saeranv 6y ago
I'll add another perspective to this, beyond the privacy/data ownership debate. The global building stock currently supplies roughly 40% of the world's greenhouse gas emissions; and we are in the midst of the largest growth o
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by saeranv 6y ago
I think the biggest challenge to do this is trying to quantify probable outcomes from inputs. I don't necessarily have a model at hand that can predict my fitness level from inputs of time, and effort. I wonder if it's useful to i
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by saeranv 6y ago
This is a good point, and is one of the biggest pain points in self-study vs being taught by in school/expert, or having access to the collective intelligence of fellow students. The best way to combat this is to be smart about using w
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by saeranv 6y ago
Fascinating to see India split in two here. So I guess the collision of the large Indian mass with the eurasian mass is what created the Himalayas.
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by saeranv 6y ago
Yeah, and this projection really highlights how huge Africa is.
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by saeranv 6y ago
Terence Tao's answer here fascinates me, even though I only partially understand his response. > For instance, one can view a high-dimensional vector space as a state space for a system with many degrees of freedom. A megapixel imag
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by saeranv 6y ago
Why do you think this is different from impostor syndrome?
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Intuitive crutches for higher dimensional thinking(mathoverflow.net)
3 points by saeranv 6y ago|1 comments
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by saeranv 6y ago
His mathoverflow responses are surprisingly intuitive and elegant. Intuition for visualizing/imagining high-dimensional geometry: https://mathoverflow.net/questions/25983/intuitive-crutches-... Intuition for
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by saeranv 6y ago
Thanks, that's a much clearer way to think of it.
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by saeranv 6y ago
Okay so something like: probability of spreading = a * n probability of infected = b * n where: a,b = some blackbox function for spreading/infection ratio? n = number of people you meet Assuming both are independent events we get: p
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by saeranv 6y ago
Curious to know how you are getting power of 2 exactly. Are you just saying it's some sort of power law growth and approximately 2, or is there an actual way of deriving it?
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by saeranv 6y ago
Hah, you are correct. I even had access to numpy and still managed to get this wrong.
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by saeranv 6y ago
This comment was what made this article make sense to me. Just to add to add to the mathematical intuition here (please correct me if I'm wrong): if you're thinking of it as a unit line/square/cube then total n-dim area
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by saeranv 6y ago
Was going to make the same comment, should be 0.1 people out of 1000.
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by saeranv 6y ago
> Does that include building the wall, privatizing social security, eliminating the income tax, or implementing school choice? When you live in a country where one side just wants to undo the policies of the other, there's a deeper
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Why We Can't Build(vox.com)
221 points by saeranv 6y ago|218 comments
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by saeranv 7y ago
Yes, that's with one course. Huge variance in time per class, so you can do two courses for the same amount of time if you are strategic about your choices.
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by saeranv 7y ago
I'm in it right now, starting my third term in May. It's been very valuable for me. However, I think I'm like most of the students: coming from a math, engineering, or science background, transitioning into a more software de
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by saeranv 7y ago
Gmail. At some point they redesigned the UI and it's been a horrible experience since. It hasn't wasted 100 hours, but it certainly feels like it: - It takes multiple tries to delete files or select them as read. If you select the
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by saeranv 7y ago
> All systems can be represented as a pair of functions that map current state to next state and the observation of current state, in response to some perturbation. If you are assuming the next state depends on the current state, doesn&#
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by saeranv 7y ago
This implies a false binary between shutting down the economy and millions of deaths by not isolating. Look at other countries like Germany, Denmark, and Ireland who are moving to cover wages and providing paid sick leave. Germany is offeri
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by saeranv 7y ago
Can someone explain the math here? How is he generating the histogram from just the mean and the range? UPDATE Found this: "Range is always a normal distribution, with the lower number being two standard deviations below the mean, and
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by saeranv 7y ago
I never understood list comprehensions, and was always slightly resentful of (in my mind) their illogical ordering until I realized they were mimicking mathematical expressions.

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