Beware the Water Hammer

Water Hammer:  a pressure surge or wave resulting when a fluid (usually a liquid but sometimes also a gas) in motion is forced to stop or change direction suddenly (momentum change). Water hammer commonly occurs when a valve is closed suddenly at an end of a pipeline system, and a pressure wave propagates in the pipe.

They say everything you need to know you learned in Kindergarten.  I still managed to learn a little in later years, including my graduate years studying water.  But the concept is the same -- the world is full of patterns, and systems begin to look alike regardless of the discipline.

Which brings me to my point: driving change in an organization has analogies to driving change in a fluid system.  The people dynamics have corollaries in fluid dynamics.  People have momentum and fluids have momentum.

When you close a valve in a water system, it is easy to congratulate yourself for your success.  No water is passing!  I have changed the system!  Problem solved.  But depending on the system, seconds or minutes or hours later you might be dead.  Explosions, ruptures, and implosions, sometimes deafening and disastrous, can be your end.  Why?  The accumulated momentum in the system is hard to stop.  You have to think of all of the water, all the way upstream, and determine where all of that momentum will be absorbed.

In working on 12sprints, we had to change the system of SAP to account for some of our new models.  Elastic subscription services have a ton of ramifications for a traditional software company, from accounting to legal to privacy to support, and every time we reached a decision (closed a valve / redirected flow) we learned that other parts of the system had momentum we hadn't anticipated.  And were there explosions?  That would be too strong a word, but there definitely turbulent debates and some bent metal in the expansion joints.

My conclusion?  Change is a lifestyle.  It is a lifestyle only survived by being relentlessly attuned to the rest of the system, and using a simple recipe when the pressure builds: be open, creative, and luckier than most.

And always wear waterproof clothing.

Torture is bad, everywhere.

In Torture, Plain and Simple, Suzanne points out that while it is true that torture doesn't work, it doesn't matter: it's illegal.  But let's dwell for a minute on the first point: torture doesn't work.

Elaine Scarry gave this subject a scholar's attention in The Body in Pain, where she explained that pain nullifies the world around us -- with extreme pain nothing exists but the pain.  This deconstructs the ego to a point where conversation is meaningless and information extracted in this state has one goal: to make the pain stop.  Say anything to make the pain stop.  In fact, there is a long history of torture being used to extract misinformation to support campaigns of misinformation.

While this simple fact is well established in research, it seems appallingly under communicated.  If it was well communicated, I imagine it would lead to this:

Interrogator 1: Should we do it?

Interrogator 2: Well, it doesn't work.

Interrogator 1: OK then, let's not bother.

The complex ethics simply disappear.

The Art of Trust

I was about to tweet about some happy cows I saw while driving to work today, until I remembered the law and thought better of it.  The cows weren't worth a ticket.  But aside from the desire to avoid tickets and stay alive, there is another hazard of automotive texting - thumbing the wrong key and sending the wrong message, perhaps to the wrong person.

When I hired a guy last year entirely over SMS I committed a gaffe - I received a Twitter DM (direct message) and hit reply, sending the reply to all of my followers.  This is a variant of a DM Fail, when people think they are sending a message to just one person but instead broadcast it widely.  In my case I uttered something relatively harmless like "req opened this week."

Something more nefarious happened recently on Twitter: they actually sent DMs to the wrong people, detailed in TechCrunch.  Jason accurately called this a "breach of user trust," but it was resolved quickly.  Twitter is not alone here.  A colleague of mine was using an esteemed Web2 product when they one day got a trove of someone elses messages dumped on their desktop over IMAP.  Only once, but once is all it takes.