First Post

June 1, 2026

The first principle is that you must not fool yourself — and you are the easiest person to fool.

Richard Feynman

It is a capital mistake to theorize before one has data.

I have made this longer than usual because I have not had time to make it shorter.

Blaise Pascal , Lettres Provinciales

Quotes

Graphical excellence is the well-designed presentation of interesting data.

Edward Tufte , The Visual Display of Quantitative Information

This is exactly what Orwell had in mind when he wrote:

Never use a long word where a short one will do.

George Orwell , Politics and the English Language

And that principle applies equally to code.

Side notes and margin notes

This is the simd first post. You can use all your shortcodes here too.

Full-width stuff

int main(void)
{
  std::cout << "Hello, World\n";
}
# a wide block that needs more horizontal space
result = some_very_long_function_name(argument_one, argument_two, argument_three) 

Alert environments

Beware of double pointers!

hello world is

int main(void) { ... }

and then later it is note as ...

A helpful tip for the reader.

Something the reader really should not miss. This is the simd first post. You can use all your shortcodes here too.

A warning about potential pitfalls.

A strong caution about destructive or irreversible actions.

To use Tufte CSS, copy tufte.css and the et-book directory of font files to your project directory, then add the following to your HTML document’s head block:

<link rel="stylesheet" href="tufte.css"/>

Math support

$$ x^2 \frac{1}{x} 12\,\rm{m}^2 $$

Inline math: \(\frac{1}{2}\)

Display math:

\[\int_0^\infty e^{-x^2} dx = \frac{\sqrt{\pi}}{2} 12\,\rm{m}^2\]

...

\[x^2 \frac{1}{x} 12\,\rm{m}^2\]

...

\[\int_0^\infty...\]
x86-64 Assembly on an M-series Mac