pontus

23 ms·

181.
by pontus 6y ago
If you want to learn special relativity, I highly recommend this course from Brian Greene: https://worldscienceu.com/courses/special-relativity-world-s...
182.
by pontus 6y ago
Also, giving examples of good ideas without good execution that failed (e.g. your point about cryptocurrency) does not actually show that ideas don't matter, they show that ideas are not sufficient, something I completely agree with.
183.
by pontus 6y ago
I would argue that Magic Leap is not super successful. They have raised tons of money in the private market but much of it seems to have been smoke and mirrors (similar to e.g. Theranos). Could you point me to a super successful public comp
184.
by pontus 6y ago
Sure, if you're allowing ideas to change then yes the very first idea is not important. Using your same logic, you could then also argue that execution doesn't matter because you can always fix mistakes in execution (e.g. Netflix
185.
by pontus 6y ago
I keep hearing over and over again how the idea doesn't matter and it's all about "execution execution execution!". I get that execution is important, but can we also agree that the idea is important too? I get that good
186.
by pontus 6y ago
I'm not necessarily saying that it could have happened, I'm mostly exploring how it would have played out if it had. The left seems to suggest that only an immoral (or possibly dumb) person could possibly vote for Trump and that w
187.
by pontus 6y ago
I guess while he was an outsider I'm not sure that he would have proven to be authoritarian in the way Trump is. I'm mostly worried about our democracy and not necessarily so much about policies.
188.
by pontus 6y ago
I broadly agree with you. That being said, I don't think it's fair at this point to equate what's going on on the left to what's going on on the right. They are leagues apart. That's not to say that the same thing c
189.
by pontus 6y ago
To be clear, the study actually does not show any statistically significant effect of exercise on mortality rate compared to the control group (it shows an improvement, it's just not statistically significant). The verbatim conclusion
190.
by pontus 6y ago
I used to be in your camp, but ultimately I think the decentralization and heterogeneity of the election processes provides a non-trivial layer of "security by obfuscation". In other words, if we streamline the process too well, w
191.
by pontus 6y ago
It's just a thought experiment meant to highlight a common fallacy in how people think about p-values.
192.
by pontus 6y ago
I think one of the problems is the interface through which we access these tools. I know when I walk into a Walmart that I'm dealing with a huge organization and if I accidentally break something while I'm walking through an aisle
193.
by pontus 6y ago
In fact, if you look at the document I link to above, you'll see the correct Bayesian calculation where we actually compute p(Biased | 10H). In the first case it's pretty high but in the second case it's very small.
194.
by pontus 6y ago
Yes, that's exactly my point. Saying that it really supposed to be the probability of the data assuming the null hypothesis is true is pretty confusing to most people and often times the gut feeling people keep us that it still somehow
195.
by pontus 6y ago
Here's a good example of how p values are misleading: Consider a bag containing two coins, one that's fair and one that always shows heads. Pick one coin at random and flip it ten times. Suppose you see ten heads. Would you be com
196.
by pontus 6y ago
Why is this down voted? It's obviously a joke (and reasonably funny too)...
197.
by pontus 6y ago
"Szabolcs Marka, an associate professor of physics, is developing a novel way to protect people from the vectors: a virtual mosquito net with infrared light vibrating at wavelengths that irritate the insects’ nervous systems."
198.
by pontus 6y ago
How is this different from this project from 2011? https://magazine.columbia.edu/article/what-bugs-mosquitoes
199.
by pontus 6y ago
Sure, but if you haven't even started your snowball yet, it may not be in your best interest to deeply scrutinize the length of the hill and the wetness of the snow until you find the perfect setup; it may just be better to get started
200.
by pontus 6y ago
I think this is misleading advice. I'm sure it's true that when you have amazing opportunities thrown at you at every turn, it's important to stay true to your mission and be deliberate in choosing which ones to pursue. That
201.
by pontus 6y ago
I think one of the issues is that he has simultaneously told the opposite story to his lenders, making himself look wealthier than he is in order to score loans. This, is fraud.
202.
by pontus 6y ago
Would be cool to create an open standard and perhaps even open source the development. If nothing else, I would imagine that there are quite a few hearing impaired engineers and scientists out there that would gladly work on something like
203.
by pontus 6y ago
With all the advances in tech, why does it seem that hearing aids are still from the 80s? I guess ultimately you're limited by your interface to the brain (something maybe neuralink could address?), but even still shouldn't there
204.
by pontus 6y ago
I like this idea. There are going to be a million reasons why it won't work that people will bring up, but ultimately I suspect they're all addressable. One concern that would have to be addressed upfront would be to avoid having
205.
Ask HN: Resources for HFT?
1 points by pontus 6y ago|1 comments
206.
Two Envelope Paradox(mindbowling.wordpress.com)
4 points by pontus 6y ago|1 comments
207.
by pontus 6y ago
I finally sat down yesterday to perform a thorough analysis of this classic paradox and was able to construct a super weird example. There's a link to a pdf with the details.
208.
by pontus 6y ago
As an employee of Google, it's sad to see it turn into a conventional company. Sure we take certain risks here and there, but by and large we're optimizing for the next quarter's PnL / growth. We would much rather invest
209.
by pontus 6y ago
You're right that you can't just count the number of postulates naively because there is generally not a well defined way to do so. A great example is the one you give: three laws of motion vs one law of least action. However, if
210.
by pontus 6y ago
Yes, that's right but that has to do with entanglement in QM and is not specific to MWI. In classical mechanics, a system of n particles is specified by 3n different functions of time - the three coordinates for each of the n particles

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