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Pepe1vo

425 karma · joined March 18, 2014

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Pepe1vo··on Microbatteries much smaller than a grain of rice
Yeah, I really wish I could get excited about this but you just know this is going to be another ecological disaster and/or privacy scandal waiting too happen.

Something I'm much more hopeful about is the possibility of growing organs in laboratories, which will have massive implications for health aswell as industrial production of food.

Though, putting aside pessism I can see these technologies being synergistic, potentially benefitting all of humanity. One can dream

Pepe1vo··on Ted Nelson on What Modern Programmers Can Learn from the Past (2018)
Being very much a kid (at heart at least), I'll wager the question: what's the case against declaring variables as you need them? Also, at the top of which scope are you supposed to declare variables, function scope, class scope, ... somewhere else?
Pepe1vo··on Julia 1.8
A few months back this article[0] was posted here (Why I no longer recommend Julia). Does anyone following the Julia community know if the situation is getting better?

[0] https://yuri.is/not-julia/

Pepe1vo··on How Discord supercharges network disks for extreme low latency
Discord has done its fair share of RIIR though[0][1] ;)

[0] https://discord.com/blog/why-discord-is-switching-from-go-to...

[1] https://discord.com/blog/using-rust-to-scale-elixir-for-11-m...

Pepe1vo··on Revisiting “The 4-Hour Workweek”
Depends what you're looking for, but I found most of Michael Lewis' books to be quite information dense and highly entertaining. The Big Short in particular takes goes very deep down the rabbit hole of finance.
Pepe1vo··on Drink less, exercise more – advice on pandemic living from an 18th-century poem
Calories is an extremely reductive measure and isn't really good for much more than a general rule of thumb for evaluating food. The problem with calories comes from how the caloric value of food is determined: quite literally incinerating the food and measuring the released heat.

This is obviously not how your body digests food and disregards completely the macro structure of what you're taking in. Take pasta and rice for example, both have around the same calorific value however, the carbon chains in rice are much longer than those in pasta. The implication of which is that it will take your body more time and energy to digest rice than pasta meaning that the energy release to your body will be quite different. Looking just at calorific value though, one would erroneously conclude that these two foods are more or less identical.

Pepe1vo··on More Scientists Urge Broad Inquiry into Coronavirus Origins
To be fair, the reason the lab is in that place is precisely because it's close to a place where zoonoses has occurred multiple times. Kind of like how we don't blame lighthouses for shipwrecks.

That being said, from what I've read it appears that a lab escape is a very real possibility. Though I doubt that we'll ever find out

Pepe1vo··on The origin of Covid: Did people or nature open Pandora’s box?
From the OP, it appears that scientists knew exactly where to insert a furin cleavage site:

>“Since 1992 the virology community has known that the one sure way to make a virus deadlier is to give it a furin cleavage site at the S1/S2 junction in the laboratory,” writes Steven Quay, a biotech entrepreneur interested in the origins of SARS2.

Pepe1vo··on Sweden: higher Covid-19 death rate while failing to collect on economic gains
This is empirically false. It's at least 25% worse than the 2018 flu season, which was the worst flu season in decades, and that's with unprecedented mitigation measures in place.

https://www.rivm.nl/monitoring-sterftecijfers-nederland

Pepe1vo··on Jane Street and the OCaml Compiler (2018) [video]
You would (among other techniques) use something like Stormpot to maintain Object pools to release and acquire instances from.

Object pools typically can't match the GC on latency and throughput, however they do provide a lot more predictable and stable performance.

Pepe1vo··on “I'm not sure there is an acceptable solution to the problem we are facing”
It's correct that the memory cells in your body will last a long time. However, (I think) what the parent is getting at is that within a relatively short amount of time the virus will have mutated just enough to evade detection by those memory cells.
Pepe1vo··on Ask HN: What things do you wish you discovered earlier?
I immensely enjoyed Children of Time by Tchaikovsky, coincidentally winner of the 2016 Arthur C. Clarke award :)
Pepe1vo··on Ask HN: Recommend one book I need to read this summer?
If you enjoyed those books, I'd recommend Children of Time by Adrian Tchaikovsky as well! It explores the concept of a race of spiders evolving into sentience and how wildly different it's civilization and technology would be.
Pepe1vo··on I've been building a Markdown note-taking app for 3 years
I get the sentiment against Electron, there are horribly bloated applications out there which are a direct consequence of how (badly) Electron was built and designed.

However, this particular application appears to work exactly as intended and uses all of 150MB of RAM and 0.1% CPU on my (admittedly quite beefy) laptop. Maybe, just maybe, this is actually a pretty well-built application? I understand if someone won't use this program because it doesn't scratch their particular itch. But, not using something solely because of the techniques used to build it, seems a bit elitist to me.

Pepe1vo··on IQ rates are dropping in many developed countries
This study seems to base its conclusions for the most part on a study from 2016[0] and a study limited to Norway[1]. Both of these studies base their findings on data from 1995-2005 (with the exception of the Netherlands and Britain which both span larger periods) this data itself is collected from variety of experiments with varying sample size and testing methodologies.

There certainly appears to be something interesting here, but I'd be hesitant to draw any conclusions from this data the way TFA does, which reeks a bit of sensationalism. At best I'd call it something worth investigating more thoroughly, at worst it's statistical noise.

[0] https://www.gwern.net/docs/iq/2016-dutton.pdf

[1] http://differentialclub.wdfiles.com/local--files/assigned-to...

Pepe1vo··on Switched-on bats: hosting viruses is a cost of flying
>“During the metabolic stresses of flight, some of the bat DNA is released into cells, where it doesn’t belong, and normally this would trigger a powerful immune response, however [the researchers] have shown that during evolution bats have mutated a key protein in this response called STING.”

This doesn't make sense to me. What is so special about the metabolic stress of flight? Is it different than the stress cheetah cells experience when it runs 100 kph?

Pepe1vo··on Fix the OS of your own smartphone (with Firefox OS)
Doesn't this make for a massive security risk on rooted phones? With other apps being able to inject code into any app without the user noticing.

Seems risky to me.

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