Viewing profile — jdhwosnhw

If you try multiplying two numbers, say 4 digits each, using the standard grade school technique, you'll see that you end up writing the digit-wise product of each number, with a s…

I was under the impression that because the grade school technique we learn is really just convolution over the digits, the fastest algorithms achieve o(n logn) via fourier transfo…

I think the biggest (and, in my opinion, obvious) problem with this argument is that it relies on time having no value in the eyes of the consumer (or, equivalently, that the selle…

> fully reusable rockets are going to be one of the most important engineering achievements in human history The number of implicit biases, assumptions, and unsubstantiatable asser…

Fyi the unscented Kalman filter is both easier to implement than the EKF, and also avoids several of the requirements that come along with the need to linearize (such as the differ…

That’s because, as the article explicitly states, this post is by walletwallet’s developer

> A Starlink satellite uses about 5K Watts of solar power. It needs to dissipate around that amount (+ the sun power on it) just to operate. The “+ solar power” part is the majorit…

This still relies on a heat differential, as described in the Details section of your linked article: https://en.wikipedia.org/wiki/Thermophotovoltaic_energy_conv...

Useful, extractable energy comes from a temperature differential, not just temperature itself. Once your system is at temperature equilibrium, you cant extract energy anymore and m…

This argument assumes that you only need to radiate away the energy that the solar actively turns into electricity, but you also need to dissipate all the excess heat that wasn’t c…

Thats not how big-O notation works. You don’t know what proportionality constants are being hidden by the notation so you cant make any assertions about absolute runtimes

In most places in the US (california being a notable exception) taxes are reassessed regularly based on market conditions. In some areas this can result in the property taxes risin…

> Happiness simply comes from other things in life than 'my castle my kingdom'. I know its a typical US mindset (and far from US only) to have a house on your own, but its still an…

Thats like saying the grocery store is ok with me eating some of the grapes while I shop so they must be ok with me walking out without paying for my groceries. I’m not trying to b…

Except in this case the only way the store makes money is either by you paying an entrance fee or by you looking at the products. You are being delivered a service (whose delivery …

You are using a service without paying for the service by actively circumventing the payment mechanism. Is that not stealing?

I would genuinely like to understand this perspective. Ads or paying for premium is how the underlying business makes money. The UX might suck but you have a choice - you can just …

A slightly stronger (and more relevant) statement is that the number of mutually nearly orthogonal vectors you can simultaneously pack into an N dimensional space is exponential in…

That would also be an incorrect phrasing. This entire thread is a good illustration of the difficulty of speaking precisely about probabilistic concepts. (The number of successes h…

> How much of a chance do you think we have of meaningfully changing a government, if they can guess with 80% degree accuracy how everyone voted, based on their chats and social ne…

Unfortunately I’m in the same boat. What appears especially telling is: > tVNS applied for 30 min daily over 7 consecutive days increased VO2peak by 1.04 mL/kg/min (*95% CI: .34–1.…

I’m not sure what you mean by “higher population” but fyi what determines the required number of samples is a function of the full shape of the underlying distribution. For instanc…

I’ve heard this statistic before and it always strikes me as basically a non-sequitor. You’re writing down two percentages as if they are meaningful with respect to one another, bu…

I would still say its completely wrong, given that this explanation makes explicit predictions that are falsifiable, eg, that airplanes could not fly upside down (they can!).

> Yep, for me it confirms all the reasons why I think python is slow Yes, that is literally the explicit point of the talk. The first myth of the article was “python is not slow“