Planned obsolescence isn't only a thing with fast moving technology either. Engineers design bridges with a finite lifespan in mind as well, and it's not becaus

Planned obsolescence isn't only a thing with fast moving technology either. Engineers design bridges with a finite lifespan in mind as well, and it's not because they think there'll be a much better bridge in X years. It's just that the relationship between the expected lifespan of a thing and its cost to develop is exponential.