Next to the very real news of the Spectre and Meltdown CPU issues, it was lovely to come across Ken Shirriff's story of getting past password protection on some old Xerox Alta disk packs from the 1970s.

As further proof for why 2018 is going to be the year of blogging, two of the comments are from people who actually know about the old disks!

"I designed chips at PARC as a summer intern. You have a couple of disks from Doug Fairbairn, who was also in Lynn Conway's group."

and

I'm flabbergasted. That's my Alto disk you broke into!

The APL stuff is surely related to some work I did with Leo Guibas, showing why lazy evaluation would be a really good idea for implementing APL: see Compilation and delayed evaluation in APL, published January 1978. (That paper gives me an enviable Erdős number of 3, since Leo is a 2.) I'm sure it's not a complete APL implementation, just a proof of concept. It happens that my very first part-time job at PARC, in 1973, involved writing decision analysis software in APL — on a timesharing system!

Given the AATFDAFD hint, I'd guess the real password is ADDATADFAD. This derives from a project I did with Jef Raskin at UCSD in 1974. (He mentioned it in this interview.) The Data General Nova we were working with produced some garbled message with ADDATADFAD where it should have said ADDITIONAL, and it was a running joke ever after. Strange, the things that occupy some brain cells for over 40 years.

Thanks for an amusing blast from the past.

— Doug Wyatt (Xerox PARC 1973-1994)

Books in 2017

Here's what I ended up reading this year, in roughly chronological finishing order. (I usually have 3-4 books going on at once.)

A fairly random selection, and hopefully I can get a few more in next year.

Post-Verbal Language

James Beshara has a really interesting read on how communication will change and evolve in a post-verbal world, namely one where human/brain interfaces like Neuralink can more directly transmit thought between people than the medium of language allows today.

After reading the essay I wonder if people's thoughts or the neural pathways they activate, if they could be directly transmitted into another brain, would actually make any sense to someone else with a unique internal set of pathways and framework for parsing and understanding the world. The essay assumes we'd understand and have more empathy with each other, but that seems like a leap. It seems likely the neural link would need it own set of abstractions, perhaps even unique per person, similar to how Google Translate AI invented its own meta-language.

Today idea-viruses that cause outrage (outrageous?) in today's discourse  have been weaponized by algorithms optimizing for engagement, and directly brain-transmitted memes seem especially risky for appealing to our base natures or causing amygdala hijack. But perhaps a feature of these neural interface devices could counteract that, with a command like "tell me this piece of news but suppress my confirmation bias and tribal emotional reactions while I'm taking it in."