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
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
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

More from Cory Doctorow #BLM

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/

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A brief analysis and comparison of the CSS for Twitter's PWA vs Twitter's legacy desktop website. The difference is dramatic and I'll touch on some reasons why.

Legacy site *downloads* ~630 KB CSS per theme and writing direction.

6,769 rules
9,252 selectors
16.7k declarations
3,370 unique declarations
44 media queries
36 unique colors
50 unique background colors
46 unique font sizes
39 unique z-indices

https://t.co/qyl4Bt1i5x


PWA *incrementally generates* ~30 KB CSS that handles all themes and writing directions.

735 rules
740 selectors
757 declarations
730 unique declarations
0 media queries
11 unique colors
32 unique background colors
15 unique font sizes
7 unique z-indices

https://t.co/w7oNG5KUkJ


The legacy site's CSS is what happens when hundreds of people directly write CSS over many years. Specificity wars, redundancy, a house of cards that can't be fixed. The result is extremely inefficient and error-prone styling that punishes users and developers.

The PWA's CSS is generated on-demand by a JS framework that manages styles and outputs "atomic CSS". The framework can enforce strict constraints and perform optimisations, which is why the CSS is so much smaller and safer. Style conflicts and unbounded CSS growth are avoided.