Has life expectancy of the object ever factored into your engineering decision in corroboration with the cost effectiveness. If so, which I'm sure it has -like it has for every other product, then you are also partaking in planned obsolescence.
If a Jet engine is known to only last 5000 hours, are you going to spend extra money for components which may increase the life to 7000 hours if it raises the price perspective too high? Since the answer will be no, then you have partaken in planned obsolescence; because, you do not look to see if it would even be possible to acquire or make the components to extend the life of an engine when the market has already accepted the life to be about 5000 hours.
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