Too many words per line...

EDIT:

I'm getting downvoted so I'll provide some explanation.

The first paragraph (excluding the last line) has 107.8 characters/line (including spaces).

"Anything from 45 to 75 characters is widely regarded as a satisfactory length"

Personally, while I enjoyed this pdf, it could have been a bit more pleasant to read.

My impression is that critical remarks seem to be frowned upon on HN, even if they're justified.

it depends on whether they're left or right justified.

Yep. Depending, in turn, upon the phase of the moon.

Elegant work.

Dave Emory might have a few comments on the eugenics stuff.

Would like to see more Tcl too.

I had hoped for a happier ending to the 0xAA55 poem.

Now I will wait for correspondence from young explorers who find me via my old 'fix a raw drive' blog post. I expect a few.