BC TECH

Saved by @zmbnski

Patrick McKenzie
@patio11 6 years, 3 months ago 2792 views

Save to PDF Share See On Twitter

It’s underremarked upon that stablecoins accomplish basically all of the original design goals for Bitcoin qua a transactional mechanism (instant free value transfer anywhere), but that nobody cares about this because nobody ever cared about that part of the pitch.

“Why do people care about stablecoins then?”

A mix of “they encourage dollar-denominated liquidity in the cryptocurrency ecosystem and discourage withdrawal of the same” and “they’re good for money laundering.”

“But they make value transfer between exchanges much faster!”

This was a solved problem in traditional finance, too, mostly through the extension of credit. (It doesn’t matter how long settlement takes if there is sufficient trust to enable credit.)

The Bitcoin ecosystem is *positively allergic* to credit, so you have to call it a coin for them to accept it. And after you call it a coin they ignore everything the world has learned about credit, like risk management.

“Stablecoins aren’t credit!”

They’re pretty much exactly credit? A tether is a zero-coupon Bitfinex bond with a non-functioning call option. I

More from Patrick McKenzie

Patrick McKenzie
@patio11

Torn between "I think losing $100 million when someone beats you at security research is pretty much exactly what you signed up for doing yield farming" and "Maaaaaaaybe not the future of finance you were expecting, huh."

How to put this in regular finance terms...

Suppose hypothetically you have an account at a brokerage with some valuable asset in it. You take a margin loan against that asset to fund your normal spending, or pay a tax bill, or maybe buy something at another brokerage.

For reasons known only to the brokerage, they don't denominate your loan in dollars. They denominate it in shares of a money market fund, which are worth $1 +/- epsilon and basically never deviate from that.

And you think "Hmm, I have a large equity cushion against this loan."

One day, a computer system at the brokerage reports, sorta-kinda erroneously, that the value of the money market fund is actually $1.30 per share. The equity cushion is gone. Your valuable asset is sold, at timing you didn't choose, at wrong price, to pay an inflated phantom debt

And your recourse is... probably tweeting at patio11 saying he finds too much joy in this.

Which I don't; I just feel like this is why you don't trust a CPU built out of redstone to build reliable financial infrastructure on top of.

Patrick McKenzie
@patio11

If an employer is willing to be abusive to you prior to hiring you, when you have maximum leverage and they are maximally incentivized to play nice, I think that gives you *extremely actionable* signal as to how they'll treat you when you're working there and dependent on them.

For candidates: evaluate prospective employers accordingly.

For startups employing e.g. engineers: given that your candidates should evaluate you accordingly, be *extra special* careful to operate like professionals with regards to e.g. interviewing, offers, and negotiation.

"Can you be more explicit about 'abusive' here?"

Not without violating a confidence, but as someone who has been on hiring side of table and is a capitalist, there are *clearly* things you could do which would be "sharp operating, but we're all sharp operators" in some contexts.

Hiring employees is often not one of those contexts. The nature of the relationship, the asymmetry in power, and the social contract strongly counsel you to be a lot better there than you are minimally required by law / contract.

A thing which aesthetically frustrates me is that a lot of the things I've heard companies do here serve *no legitimate business purpose.* In some cases it's getting tens of dollars of advantage. TENS! On an engineering candidate!

Advertisement

Patrick McKenzie
@patio11

This lunch is 500 yen ($4.80) at Sukiya, a Japanese fast food restaurant which belongs to a category with about three big competitors.

I love the aesthetics of this category and they’re under remarked upon.

I think people underestimate QSRs in terms of social utility, but Sukiya et al describe themselves as mission-oriented enterprises. I believe this is largely sincere, and goes back to the 60s and 70s, when the clientele was primarily manual laborers who had migrated to work.

Japan was not a rich nation at the time, and day laborers in particular were both unlikely to be able to cook for themselves and unlikely to have much of a food budget, and so the chains sprung up offering an honest-to-goodness cooked meal delivered in under a minute for cheap.

This heritage continued over the years, even after Japan became a much more wealthy nation, and these chains function as social support and dignity for folks in diminished circumstances.

They also are a wee bit of a cartel, and I appreciate the aesthetics of the cartel:

Back when I was first in Japan, in the mid 2000s, there was an increase in the price of beef.

And the heads of the three chains got together, and decided that the price of the basic beef bowl needed to increase, but given the economic circumstances how could they hold the line.

Patrick McKenzie
@patio11

A thread on HN about bad code in legacy projects both makes me think how little we've learned as a discipline over the years and, honestly, how little credit we give ourselves for some pretty major

Fun going down this list and thinking: "Hmm, plausible at a well-run modern software shop", "Hmm, possible, but requires implausible tradeoffs", "Literally disallowed by languages", and "If you were to attempt doing that our test suite wouldn't let you merge."

I think we as an industry celebrate (not quite the right word) failure too much and don't celebrate success nearly enough. There is no DailyWTF for competent execution, word of which generally stays pretty local to the source while incompetence passes into legend.

Alrighty let me try to thread the needle on being the change I want to see in the world while not giving away anything that will get me in trouble:

Ruby has wonderful developer ergonomics. Typed languages are easier for machines to guarantee the correctness of. We built a type checker for Ruby (and I believe it is slated for OSS release sometime).

c.f.

Patrick McKenzie
@patio11

FAQ: “How do I get better at writing?”
Me: Write a million words.
Follow up: “Hah but seriously.”
Me: Start with 20,000 words. Everyone gets to that 50 times in their first million.
Follow up: “No seriously.”
Me: Nobody expects 10 Quick Tips To Play Violin At Carnegie Hall.

The Internet is so much better at teaching writing than the traditional educational system principally because it removes an artificial and limiting constraint on output imposed by ability of gatekeepers’ limited time to evaluate output.

(Interestingly in fields where we actually care about performance we’re good at encouraging students to practice when no one is watching but for writing we basically assume all the value is created by the teacher-minute of attention. Teacher-minutes are scarce and rationed.)

If you ever want to be deeply, deeply disillusioned about the state of the world, compare what we do where we care about output quality and what we do where we don’t, and which domains sort into which column by revealed preference.

More from Tech

Biz Stone
@biz

Originally, tweet length was 160 minus username length. One day, I turned to Jack and pointed out that I got one more character than him. He said, "That's not fair. We should standardize." I agreed. He said, "How about 140?" I said, "Sure." And he updated the code.

Last year, we upgraded tweet length to 280 and guess what? Use of 'please' is up 54% and 'thank you' is up 22%. I love that! Also, people are asking more questions and having more conversations. All this, and the majority of tweets are still under 140. It worked.

Simon Wardley #EEA
@swardley

X : Our executive team is concerned that we need to up our game in order to out innovate Amazon.
Me : Do you map?
X : Yes
Me : Like this?
X : No. What's that?
Me : A map of a tea shop.

X : Why is that a map?
Me : Long story, all to do with how space has meaning. To keep it short, maps help people to focus on user needs, the components involved, to communicate missing components and scenario play ideas like staff becoming robots.

Me : They’re also good for measuring and managing capital flow, making investment decisions, removing bias and getting rid of duplication.
X : I don’t see how that helps with innovation?

Me : Well, innovation is a tricky word because we use it to describe many things. If you’re talking about differentiation with the adjacent unexplored then you’re experimenting in the “uncharted” space e.g. immortality with magic provided by the special custom built kettle.

X : That sounds like nonsense.
Me : A lot of what people think will be the next great innovation is nonsense. Actually, most of it is. That’s the nature of the uncharted space, it’s experimental, high risk and generally results in failure.
X : We need more reliable innovation.

Advertisement

Loren Brichter
@lorenb

So it turns out that Google Chrome was making everything on my computer slow *even when it wasn’t running*, because it installs something called Keystone which is basically malware.

I made a website because this shouldn’t

Wired first reported on how bad Keystone was 11 years ago when they put it into Google Earth (they seem to put it in all their popular

The fact that Keystone hides itself in Activity Monitor is bizarre. (The only sign of it was excessive CPU usage of WindowServer which is a system process).

I don’t know if Google was doing something nefarious with Keystone, or a third party figured out how to (which Wired warned about). But either way, I’m not inclined to give Google-the-organization the benefit of the doubt (despite the many good people who work on Chrome)...

...since it's been a decade+ and this still hasn't been "fixed".

There is no reason for auto-update software to need to do what Chrome/Keystone was doing. It also has a long history of crashing Macs.

$Jen \u26a1$

Jen ⚡
@leoniedelt

Been reading up a lot about these jabs, esp as I know they are going to be a condition of a return to normality

Was on a zoom call last evening with a testing company that had some fascinating evidence on protection etc.

I have more reading to do.

I do not want to be coerced into something I don't want, BUT i want normal back as soon as possible.

Basically i'm at the point in my isolation and thinking that I'll take whatever just so this bullshit can end.

That is a desperate mindset, but so is 12 months of being cut off from the world.

All i have is what goes round and round in my head.

There's no one else to help balance it.

So i'm in group 6, and my surgery are doing group 6 right now. And i am at the point i want to do it to get it DONE.

And also to study what happens. Because i have that kind of mind.

I remember Pandemrix.

But we live with risk every day.

I risk my life climbing walls with only a harness around my waist to catch me as i lean back and fall off

And rational risk assessment is at the heart of everything going wrong these last 12 months

Tessa Davis
@TessaRDavis

How do you optimise your slides, audio or video when delivering online teaching?

There are many learning theories out there, but Mayer’s Multimedia Learning Theory is epic.

Read this thread + use his theories to improve learning transfer

Non-ideal slide to get started👇

1/17

You May Also Like

antifa.drone
@antifa_drone

Fake chats claiming to be from the Irish African community are being disseminated by the far right in order to suggest that violence is imminent from #BLM supporters. This is straight out of the QAnon and Proud Boys playbook. Spread the word. Protest safely. #georgenkencho

There is co-ordination across the far right in Ireland now to stir both left and right in the hopes of creating a race war. Think critically! Fascists see the tragic killing of #georgenkencho, the grief of his community and pending investigation as a flashpoint for action.

Across Telegram, Twitter and Facebook disinformation is being peddled on the back of these tragic events. From false photographs to the tactics ofwhite supremacy, the far right is clumsily trying to drive hate against minority groups and figureheads.

Be aware, the images the #farright are sharing in the hopes of starting a race war, are not of the SPAR employee that was punched. They\u2019re older photos of a Everton fan. Be aware of the information you\u2019re sharing and that it may be false. Always #factcheck #GeorgeNkencho pic.twitter.com/4c9w4CMk5h
— antifa.drone (@antifa_drone) December 31, 2020

Declan Ganley’s Burkean group and the incel wing of National Party (Gearóid Murphy, Mick O’Keeffe & Co.) as well as all the usuals are concerted in their efforts to demonstrate their white supremacist cred. The quiet parts are today being said out loud.

There is a concerted effort in far-right Telegram groups to try and incite violence on street by targetting people for racist online abuse following the killing of George Nkencho

This follows on and is part of a misinformation campaign to polarise communities at this time.
— Mark Malone (@soundmigration) January 1, 2021

The best thing you can do is challenge disinformation and report posts where engagement isn’t appropriate. Many of these are blatantly racist posts designed to drive recruitment to NP and other Nationalist groups. By all means protest but stay safe.

Hindu Media Wiki
@HinduMediaWiki

Speech Delay is most common in children nowadays

In ancient times, our grandparents used to follow typical natural way of caring the needs of a child. All they used were more of natural products than chemical based for the growth of child.

One of major step followed was to feed Gurbach Jadd/ Vasa Kommu/ Acorus Calamus for initiating good speech ability in a child. This stem was needed to babies on Tuesdays and Sundays in mother's milk.

Vasa is feed to baby after the 1st bath on 12th day in week. Weekly only thrice it is fed and named as :

Budhwar - Budhi Vasa
Mangalwar - Vaak Vasa
Ravi Vaar - Aayush Vasa

This stem is burnt and rubbed against the grinding stone in mother's milk or warm water to get a paste

The procedure to make it is in the link

https://t.co/uo4sGp7mUm

It should not be given daily to the child. Other main benefits are

1. It clears the phlegm in child's throat caused due to continuous milk intake. It clears the tracts and breathing is effortless.
2. Digestion

For children who haven't got their speech and is delayed than usual should feed this vasa on these days in week atleast for 6months. Don't get carried away with this dialogue
"Some gain speech little late"

Advertisement

Brittany Packnett
@MsPackyetti

We should stop confusing what someone was doing when we became aware of them with all they are capable of, interested in, or ever hope to be

Let folks have their many talents, interests and gifts. Life is far more fun with variety, loves.

A lot of folks have come to know me as an activist & I’m grateful that folks care to know me at all.

But I wasn’t born in 2014. I was a whole teacher, executive, policy person, speaker, arts and culture lover, reader, writer, woman of faith, fashion and more before 4 yrs ago 🤷🏾‍♀️

We rightfully complain that marginalized people are not allowed to be fully human.

But we internalize and transfer our oppression daily. It’s a smog. We all breathe it in & act it out.

And then tell WoC “girl ain’t you supposed to be a _______? Why you doing ____?”

Can I live?

And don’t go reading anything personal into this-this isn’t about me necessarily and it’s no subtweet (I try hard not to do that.)

I’ve just been observing that behavior more and more lately. Especially when it comes to marginalized folks.

Evolution should be our aspiration.

“Can’t knock the hustle” should be our anthem.

As long as someone isn’t bringing active and continual harm, why can’t they explore their many sides?

Shalini Singh Sengar
@Maverickmusafir

Remembering Colonel Anil Kaul, VrC (Retd) on his 3rd Death Anniversary.

“It was October 12, 1987, exactly 5:55 pm as I was… coming out of the cupola of my T-72 tank on a steamy evening in an unknown place called Kokkuvil in the Jaffna district of Northern Sri Lanka.+

I froze in that confined space at what I saw. An LTTE militant stood at 60 meters aiming his rocket-propelled gun at my tank.

In a flash he fired. Probably having lost his nerve he aimed too low. The projectile hit the left mudguard of the tank, but for some inexplicable reason+

did not explode. It then hit the side of the main gun and then exploded on top of the turret, all in a fraction of a second. Before I knew, it seemed I had received a straight right punch so to say to my chin. I saw some blood appear on my left hand and there was a sharp drop in+

my eyesight.

Lt Colonel (now Lt Gen) Dalbir Singh, then Commanding Officer of 10 Para Commando, who was standing on the engine deck said to me, “Yaar what a close shave.”

He suddenly saw me and the look on his face told me that something was very very wrong with me. In that+

fraction of a second, as if it was a rewind of my entire life, thoughts raced through my life as to how and when I had landed myself in such a situation…

I asked my gunner to pull out a first field dressing (FFD) which is standard equipment in a first aid box carried in each+

Indian Quant
@indian_quant

Nano Course On Python For Trading
==========================
Module 1

Python makes it very easy to analyze and visualize time series data when you’re a beginner. It's easier when you don't have to install python on your PC (that's why it's a nano course, you'll learn python...

... on the go). You will not be required to install python in your PC but you will be using an amazing python editor, Google Colab Visit https://t.co/EZt0agsdlV

This course is for anyone out there who is confused, frustrated, and just wants this python/finance thing to work!

In Module 1 of this Nano course, we will learn about :

# Using Google Colab
# Importing libraries
# Making a Random Time Series of Black Field Research Stock (fictional)

# Using Google Colab

Intro link is here on YT: https://t.co/MqMSDBaQri

Create a new Notebook at https://t.co/EZt0agsdlV and name it AnythingOfYourChoice.ipynb

You got your notebook ready and now the game is on!
You can add code in these cells and add as many cells as you want

# Importing Libraries

Imports are pretty standard, with a few exceptions.
For the most part, you can import your libraries by running the import.
Type this in the first cell you see. You need not worry about what each of these does, we will understand it later.