Would Wall Street have underwritten the Apollo program?
In today's FT, John Kay points out the value of building complex systems with modular parts, so that if one part fails, it doesn't necessarily risk the whole system. In
FT.com / Columnists / John Kay - Too big to fail? Wall Street, we have a problem, Kay reminds us about how the modular nature of the Apollo spacecraft enabled Apollo 13 astronauts to use their lunar module as a "lifeboat" for the long trip back to earth after an explosion nearly killed the crew on the way to the moon.
What's missing from Kay's recollection is the great lesson from Apollo 13 that we must make those modular systems capable of replacing each other.
The great scene in the Apollo 13 movie with Tom Hanks is when engineers explain to flight controller Gene Krantz that they can't simply substitute the air filters from the command module for the exhausted ones on the LM.
This is because the contractor for the command module made them square and contractor for the LM made the air filters in the LM circular in shape.
Reminds me of the different shapes of the plugs for cell phone charger jacks. If that's how our financial system continues to be built, we may need to hold our breath a while longer.

