Profile cover photo
Profile photo
Alex Rifman
179 followers
179 followers
About
Alex's posts

Post has shared content
"Back during World War II, the RAF lost a lot of planes to German anti-aircraft fire. So they decided to armor them up. But where to put the armor? The obvious answer was to look at planes that returned from missions, count up all the bullet holes in various places, and then put extra armor in the areas that attracted the most fire.

"Obvious but wrong. As Hungarian-born mathematician Abraham Wald explained at the time, if a plane makes it back safely even though it has, say, a bunch of bullet holes in its wings, it means that bullet holes in the wings aren't very dangerous. What you really want to do is armor up the areas that, on average, don't have any bullet holes. Why? Because planes with bullet holes in those places never made it back. That's why you don't see any bullet holes there on the ones that do return."  (From http://www.motherjones.com/kevin-drum/2010/09/counterintuitive-world)

When considering software practice and process I wonder if we make the same mistake, looking to armor the area with the most bullet holes.  Every time you have to maintain some buggy annoying and difficult piece of software, you are patching up one of the planes that got home, that made it through.  No one maintains the software that never made it through battle.  The projects that flew on until they ran out of fuel, and due to navigator error never turned around to head home to base.  There's lots of failure modes.  Most of them aren't contingent on the quality of the software engineering.

Post has shared content
Tainted love.  

Post has shared content
Makes math sense, but seeing it is way cooler. 
Golf ball hitting a steel plate at 150mph in 70,000 fps.
Animated Photo

Post has shared content
Beautiful shot. 
Reflecting Awareness

Chicago, IL

That's right, I was back in Chicago for a day trip this past weekend. Ate at some of the places we missed dearly, and stocked up on supplies. We made one last stop at the Museum Campus, where I took this shot.

My wife just reminded me that it has been a year since we moved to Wisconsin. While in some ways I miss living in a big city, I have come to enjoy & appreciate my new surroundings.
Photo

Post has attachment
I agree with Jay that this is one of the coolest scooters on the market.

Post has attachment

Post has attachment

Post has shared content
I approve!
Get ready for a massive hangover, more than a dozen new breweries are coming to Chicago.

Post has attachment
I won candy on the #googlebirthday doodle! Score: 92

Post has attachment
Cannot wait for this to come out!
Wait while more posts are being loaded