Today's Twitter threads (a Twitter thread).

Inside: Competition is Killing Us; Predatory lender seeks national bank charter; Militarizing cops was a failure; and more!

Archived at: https://t.co/mFat1Fsadn

#Pluralistic

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Competition is Killing Us: Consumer harm considered harmful.

https://t.co/oJTENrDhFD

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Predatory lender seeks national bank charter: Oportun led America in suing latinx borrowers during the pandemic.

https://t.co/FPK6NTwFjj

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Militarizing cops was a failure: Water still wet.

https://t.co/OACizKzNru

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#15yrsago Hollywood’s Canadian MP claims she’s no dirtier than the rest https://t.co/iOEH3n3sON

#15yrsago John McDaid’s brilliant sf story Keyboard Practice free online https://t.co/ciVbtorYiV

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#5yrsago Gene Luen Yang’s inaugural speech as National Ambassador for Young People’s Literature https://t.co/mUIAvVHLvy

#1yrago Three years after the W3C approved a DRM standard, it’s no longer possible to make a functional indie browser https://t.co/dG1yBUdU5W

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#1yrago A Public Service: a comprehensive, comprehensible guide to leaking documents to journalists and public service groups without getting caught https://t.co/5TqvsyzGSF

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Yesterday's threads: Into the breach; Revolutionary Colossus; and more!

https://t.co/u9iFLy7PsK

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My latest novel is Attack Surface, a sequel to my bestselling Little Brother books. @washingtonpost called it "a political cyberthriller, vigorous, bold and savvy about the limits of revolution and resistance."

Get signed books from @darkdel: https://t.co/HfWfdx8sIu

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I have a (free) new book out! "How to Destroy Surveillance Capitalism" is an anti-monopolist critique of Big Tech that connects the rise of conspiratorial thinking to the rise of tech monopolies and proposes a way to deal with both:

https://t.co/Us0SPxlcmD

10/
My ebooks and audiobooks (from @torbooks, @HoZ_Books, @mcsweeneys, and others) are for sale all over the net, but I sell 'em too, and when you buy 'em from me, I earn twice as much and you get books with no DRM and no license "agreements."

https://t.co/vpGcSZiPZ2

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Upcoming appearances:

* What if the future of our public lives online looked like _____? (panel at New_ Public), Jan 13, https://t.co/PoSqIrbIL8

* Keynote for https://t.co/Lr61KpUI3e, Jan 22 (US) 23 (Australia) https://t.co/7dfEFubGFn

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Recent appearances:

* Hedging Bets on the Future (Motherboard):
https://t.co/7YeNDAjLfc

* Applying the Pandemic Mindset to Climate Change:
https://t.co/syTXEF1gFz

* 2020 Beaverbrook Lectures:
https://t.co/SGDUBRVAC1

* Bibliotherapy/Shelf Healing:
https://t.co/nPJvYlpa9S

13/
My first picture book is out! It's called Poesy the Monster Slayer and it's an epic tale of bedtime-refusal, toy-hacking and monster-hunting, illustrated by Matt Rockefeller. It's the monster book I dreamt of reading to my own daughter.

https://t.co/yQLVua4WkB

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You can also follow these posts as a daily blog at https://t.co/iSBh8s9m7q: no ads, trackers, or data-collection!

Here's today's edition: https://t.co/mFat1Fsadn

15/
If you prefer a newsletter, subscribe to the plura-list, which is also ad- and tracker-free, and is utterly unadorned save a single daily emoji. Today's is "💅🏾". Suggestions solicited for future emojis!

Subscribe here: https://t.co/TwPzz87nAw

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Are you trying to wean yourself off Big Tech? Follow these threads on the #fediverse at //twitter.com/[email protected]." target="_blank">@[email protected].

Here's today's edition: https://t.co/sSevHyx4JG

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Today's top sources: Boing Boing (https://t.co/TrJ3nmo0o2).

eof/

More from Cory Doctorow #BLM

Happy Birthday to the queen of the scream queens, Barbara Steele! https://t.co/qnhQvROGVa


Happy Birthday to the queen of the scream queens, Barbara Steele!
https://t.co/qnhQvROGVa


Happy Birthday to the queen of the scream queens, Barbara Steele! https://t.co/qnhQvROGVa


Happy Birthday to the queen of the scream queens, Barbara Steele! https://t.co/qnhQvROGVa


Happy Birthday to the queen of the scream queens, Barbara Steele! https://t.co/qnhQvROGVa
I've just read one of the most lucid, wide-ranging, cross-disciplinary critiques of cryptocurrency and blockchain I've yet to encounter. 1/


It comes from David "DSHR" Rosenthal, a distinguished technologist whose past achievements including helping to develop X11 and the core technologies for Nvidia.

https://t.co/tkAMShno4k 2/

Rosenthal's critique is a transcript of a lecture he gave to Stanford's EE380 class, adapted from a December 2021 talk for an investor conference. 3/

It is a bang-up-to-date synthesis of many of the critical writings on the subject, glued together with Rosenthal's own deep technical expertise. He calls it "Can We Mitigate Cryptocurrencies' Externalities?"

The presence of "externalities" in Rosenthal's title is key. 4/

Rosenthal identifies blockchainism's core ideology as emerging from "the libertarian culture of Silicon Valley and the cypherpunks," and states that "libertarianism's attraction is based on ignoring externalities."

This is an important critique of libertarianism. 5/

More from Finance

Ok here is the explanation. Grab a cup of coffee and read on. If you have not read/noticed this, you will see intraday options movement in a new light.


Say we have two options, one 50 delta ATM options and another 30 delta OTM option. Normally for a 100 point move, the ATM option will move 50 points and the OTM option will move 30 points. But in a high volatile environment, the OTM option will also move nearly 50 points

To understand why this happens, first understand why an ATM option is 50 delta. An ATM option has the probability of 50% of expiring as ITM. The price just has to close a rupee above the strike for the CE to be ITM and vice versa for PEs

Now think of a highly volatile day like today. If someone is asked where the BNF will close for the day or expiry, no one can answer. BNF can close freakin anywhere, That makes every option of an equal probability of being ITM. So all options have a 50% probability of being ITM

Hence, when a huge volatile move starts, all OTM options behave like ATM options. This phenomenon was first observed in the Black Monday crash of 1987 at Wall Street, which also gave rise to the volatility skew/smirk

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