Friday, September 21

Careful with That Laptop, Eugene

Today I came across the Tallinn Manual on the International Law Applicable to Cyber Warfare.1 Lots of good stuff in case you're planning on starting one.  There's some interesting stuff even if you're not.

For example, suppose you're thinking of joining the resistance in a levée en masse defending some beloved piece of critical U.S. infrastructure under cyberattack (er, your local water district?). Then you need to know that under the Manual's Rule 35, you will no longer have the protections afforded to civilians under the Laws of War.2 Also note that one of the criteria classifying someone as a combatant is the "open carrying of arms". Which under Rules 39&41 of the manual, might mean that when the bits hit the fan you wouldn't want to walk around carrying a phone computer.

1 Annoyingly, the report can only be read via some lame publishing platform.
2 Don't say there are no laws of war. I just told you there's even a manual on how those laws apply to cyberwar.

Monday, July 2

Tegal buys CollabRx

I'm pleased to relay the announcement that Tegal Corporation (NASDAQ:TGAL) has purchased CommerceNet portfolio company (and incubatee) CollabRx.

In September '10 — weeks after I sold Usable Security Systems — founder Marty Tenenbaum asked me to help out CollabRx.  I worked there informally as COO and head of product management for over a year.  Together with CollabRx employees like Smruti Vidwans and Jeff Shrager, I created CollabRx's Therapy Finder family of web applications for personalized cancer treatment decision support.

I'm proud of that work and I'm glad that the company and its products have moved on to a bigger stage.  Congrats guys, and thanks for all the fish.

But I'm again faced with the question I had in August '10: so, now what do I do?

Friday, June 22

He was one of those "greatest generation" guys who fought WWII (both fronts), got educated on the GI bill, created the baby boom (me and my two sisters) moved to the suburbs and took the train every day into the city.

His parents were from Eastern Europe. He was the first one in his family to be college educated, I think. Attended CCNY after the war like so many NYC Jews, finishing a year before I was born. Got a Columbia MSCE (soils engineering) doing night school for many years when I was a little boy. I remember hearing him coming home after I was supposed to be asleep. I remember (at seven!) a man spoken of with great respect — Dr. Tschebotarioff, clearly a great and important man. Dad's mentor, I realize now. I'm sorry I never looked before; Dad would have appreciated knowing the Doctor has a wikipedia entry!

Moving to the suburbs and raising a family makes him sound very ordinary. But I remember as a little boy learning about the things he had done and was doing, and to me he may as well have been building the pyramids. In my mind's eye now I see him at one of many drafting boards at Ammann and Whitney working on the Verrazano Narrows Bridge and the Thomas Dewey Thruway.

Then he moved out of the bullpen. Stabilized the Jefferson Memorial by driving cooling pipes through and freezing the mud underneath. Built the foundation for a NASA radio telescope in West Virginia (Greenbank?). He'd come home and show me blueprints before and pictures afterwards.

He took me on soils survey jobs a couple of times. Reconstructing my boyhood memory I realize he had started his own consulting firm. Was I nine? I got to hold the surveyor's stick for him, tried to dig the holes deep enough with the big post-hole digger. I'd pour water in the hole and he'd time it with a stopwatch and write it down in a notebook.

Some of these jobs required what seemed like long drives. I got to sit in the front with him and sing Gilbert and Sullivan to keep him awake. He loved G&S like no other music, and taught me all the words. I've got to say, the man was completely tone-deaf. He favored the fast "patter" songs and liked to hear my tongue work out all the words:
I am the very model of a modern Major-General
I've information vegetable, animal, and mineral
I know the kings of England, and I quote the fights historical
From Marathon to Waterloo, in order categorical
I'm very well acquainted, too, with matters mathematical
I understand equations, both the simple and quadratical
About binomial theorem I'm teeming with a lot o' news
With many cheerful facts about the square of the hypotenuse
I'm very good at integral and differential calculus
I know the scientific names of beings animalculous
In short, in matters vegetable, animal, and mineral
I am the very model of a modern Major-General

I suppose he must have been 35 or so when he started his own company and I find it interesting that 27 years later, at about the same age I left a big company for my first Silicon Valley startup.

The consulting firm didn't work out, but he found an exotic substitute that would shape the rest of his life. He went to Pakistan in 1963 and was part of the Louis Berger design & supervision team that built the east Pakistan road and rebuilt the road over the Khyber pass. We didn't see him for most of a year. Maybe this was an ordinary life for the greatest generation. No joke, they're still shooting at Berger supervising engineers in Afghanistan to this very day, building the Kabul-Kandahar road. He spoke with great respect of "Doc" Berger, but that didn't keep him with the firm very long.

Pakistan was the start of a fifteen year career in Asia. Airports in Indochina and Cam-ranh Bay naval base in Vietnam. Built for the U.S. Navy during the Vietnam war, but in the eighties when people asked him what he did during the sixties he'd sometimes say that among other things he built the Soviet Navy their only all-weather deep-water port.

He showed me pictures of bringing down a mountain for Sattahip Air Force Base in southern Thailand. This was where the B-52's later took off to bomb North Vietnam — I saw them take off there when I was fourteen. When he arrived there was a big mountain and a bigger swamp. When he left, there was neither because he tore down the mountain to fill up the swamp and build maybe the longest airstrip the world had ever seen — and fully loaded B-52s needed every inch of it.

There was plenty to do after the Vietnam war. Two ports in Northern Borneo, and a road past Mt. Kinabalu. Being his son made my life pretty exotic too — he sent me (at sixteen) to operate a sonar station on a survey ship sounding that northern coast of Borneo.

And then at seventeen I left home for college, and my view of his life, professional and otherwise, becomes hazy. He went through the revolving door, moving from spending the money of the international aid agencies to handing the money out. He moved to the Asian Development Bank (in Manila) and then the World Bank (in D.C.). I can't picture him as a bureaucrat, but from the few conversations I had with him about the Banks, I suspect he was a subversive one.

There's more I could say. How he loved science fiction when young but preferred science writing when he got older. How smart he was, how worldly, how decisive. Decisive to the end: in his last hours of lucidity, he wrested control of his life back from the hospital staff by refusing further treatment. I could tell you about the hour I spent at his bedside on his last night singing from the Mikado. If I keep writing then this would be more about me and how I feel rather than him and what he accomplished. I wanted to say this: he did some amazing things and I'm very proud to be his son.

New privacy aphorism

In privacy, truth is so precious that she should always be attended by a bodyguard of lies.
— me (with apologies to WRC)

Monday, December 6

Find Targeted Therapies for Metastatic Melanoma

A new web app we launched today uses the latest medical science to help doctors and patients find targeted (e.g., genetic) therapies for metastatic melanoma. This is what I've been doing the past few months (CollabRx is a CommerceNet portfolio company) – I'm pretty proud of the result: therapy.collabrx.com.

Thursday, April 29

Multiparty Kleptocracy

From the standpoint of economic policy, the United States has only one party, and it is the party of profligacy.
— Richard Posner, The Real Danger of Debt

Move and name change

This blog is now located at http://marginalguesswork.blogspot.com/.
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The blog used to be called recondite when it was hosted here; now that it's been moved I've changed the name, partially in homage to EKR's excellent blog (which has a similar name), but partly because I like the term marginal guesswork.

Sunday, November 29

Principia Mathematica for Children

You may have already heard of Logicomix; visit the website and click on the preview link to read some of it; better yet, buy the book. Wonderful stuff.

It no doubt will sound odd, a bizarre sort of bragging, but from the time I was old enough to read my Dad would talk to me about the theory of sets and types developed in The Principles of Mathematics. Russell and Whitehead's heroic quest for certainty in the face of paradox made for great drama in my mind. Dad was right that all of these stories could be grasped by (even) a child, and he enjoyed hearing me expounding on them to my mother and sister.

I can repeat what he taught me, a half-century ago, verbatim.
The class of all classes that are not members of themselves: is it a member of itself? Put another way: the Barber of Seville only shaves those who do not shave themselves. Who shaves the Barber of Seville? He can't shave himself — he shaves only those who don't shave themselves! But then he must shave himself — he shaves all who don't shave themselves!
And...
We arrive at Cantor's Infinite Hotel. Unfortunately, the desk clerk tells us, the Hotel is full! Cleverly, he makes a room available for us by having the occupants of room 1 move to room 2, those in room 2 move to room 3, and so on, leaving room 1 empty. In the same way, when 100 guests arrive at once, the clerk can free the first 100 rooms by moving the occupant of room N to room N+100. Then, disaster strikes. An infinite number of new guests arrive! What to do? Simple: the occupant of room N moves to room N*2 — an infinite number of rooms are now available.
Dad's history of the class-of-all-classes paradox has Russell realizing the problem just after Principles was sent to the publishers, completely demolishing years of work and requiring the material be rewritten. Logicomix emphasizes the impact on Frege's work (also at the printers!) instead. Wikipedia has it that Russell's book was indeed at the printers, but he simply added the theory of types as an appendix. I like my Dad's version better. What heroic intellectual honesty: years of work creating this perfect logical structure and destroying it yourself in a single flash of insight.

I miss my Dad, but I haven't lost him: he made me.

Tuesday, August 11

A poem about authentication (2nd try)


Resume

Dongles escape you;
Passwords are weak;
Grids confuse you;
And web forms will leak.
SAML's not easy;
Can't change your PIN;
Fingerprints greasy;
Just stay logged in.

Sunday, January 18

End of an Error (reprise)

With a little luck, George Jr. will be the last baby-boomer* president our country has to suffer. Sorry, Hillary. There's lots I like about my fellow boomers, but we'd all be better off if the 60's were taken for granted rather than have those battles constantly re-fought.

That said, a song went through my head today that only the Woodstock generation would know:
I heard a song last night
What a lovely song it was
I thought I´d hum it all night
Unforgettable because

All of the players were playing together
And all of the heavies were light as a feather
All I remember is a feeling tomorrow
And as I recall the rest will just follow
I had a dream, John Sebastian

Our great national nightmare will soon be over.

* I say the definition of a baby-boomer is someone who doesn't remember WWII, but does remember the Kennedy assasination.

Saturday, November 22

Go, Panthers!

It's good to see fellow ISB grads get into positions of power.

Tim, I'm rooting for you. More than that: I'm counting on you.

Monday, September 8

Music to brute force by

i tried your birthday
i tried your mom's first name
i have the password to your...
i tried your cat's name
i tried your favourite band
i have the password to your...
...shell account
— Barcelona, I Have the Password to Your Shell Account

Friday, August 22

Lucky

Never been lonely
Never been lied to
Never had to scuffle in fear
Nothing denied to
Born at the instant
The church bells chime
And the whole world whispering
Born at the right time
– Paul Simon, Born at the Right Time

Saturday, August 16

Translation

"It must be a generational thing." => "Damn, you are really old!"

Sunday, August 3

Login with Usable

Resumé
(Apologies to D. Parker)

Dongles we're losing;
Passwords all weak;
Grids are confusing;
And web forms will leak.
OpenID not easy;
Resets lose hits;
Fingerprints greasy;
Get more random bits.

Tuesday, July 22

My New Career

When I was in Kuala Lumpur earlier in July, my old friend and die-hard foodie KC Toh took me to the Petaling Jaya home of a local chef for an impromptu cooking lesson. Ah Pan, pictured here teaching me to fry noodles, is a hawker. I'm not sure what his specialties are. I can be forgiven for not learning this since he and I didn't share a mutually comprehensible language. He doesn't speak much Mandarin or English and I speak even less Hokkien, Cantonese, Teochew or Hakka.

He had what I'd call a "kitchen suite". His home is an ordinary two-story "link" (attached) house, including a small conventional kitchen with an unused sink & stove that he uses to entertain (read: feed people) in. An attached utility room is used to wash dishes, another attached room is used for several freezers and refrigerators. An outside room, called the "wet kitchen", is used for food preparation. This kitchen's concrete floor was very wet indeed (he gave me rubber sandals, he had wooden clogs), there were plastic buckets on the floor, some with vegetables soaking in water, others with unidentified grey liquids. Also on the floor, squatting, was his unskilled Indonesian assistant who was chopping shallots in a very desultory way.

The most interesting part of the wet kitchen are the two inverted rocket engines. Well, they probably aren't really rocket engines, but they each have their own propane tank and have three nested perforated rings that throw blue flame eighteen inches. These are what the woks go on and they can heat a wok quite fast.

No recipes here (I was sworn to secrecy) but I'll tell you that I now can make:
  1. Teochew-style steamed fish
  2. Kueh-teow tung (Ipoh-style rice noodle soup)
  3. Chow kueh-teow (Penang-style fried rice noodles)
  4. Rice Fritters
I plan to practice for a few years and then open my own stall in Tahoe.