Of course we all rely on things, often without a backup, that are our personal responsibility. Chief among them: our vehicle. Who hasn't relied on one, only to miss work or an appointment because it wouldn't start?
If you're outside of your home and lose your keys, do you have a plan for getting back inside? When is the last time you backed up everything on your computer?
I've read that NASA has a policy requiring double redundancy for all mission-critical factors and triple redundancy for all life-critical factors. Even with these safeguards, NASA has had its share of tragedies.
• It's easy to grow complacent when we have relied on something that has served us well for years.
• Redundant systems are great, if you can and will pay the price.
Of course there is always a price. As the car mechanic in Fram oil filter advertisements used to tell his customer, "You can pay me now, or pay me later."
George Hohmann retired as Daily Mail business editor in 2013. Contact him at g.hohman...@gmail.com.