Here is a Youtube video in the Veritasium series, hosted by Derek Muller, doing a wonderful job of exposing industrial conspiracies to insure that products will not last as long as they can – a program called “planned obsolescence”. He shows a single light bulb that has been burning in a fire station in Livermore California continuously for 120 years. He then reveals that in the early 20th century, the lives of light bulbs were exceeding 2000 hours which was considered too long by the manufacturers. So the five biggest manufacturers in the world entered into a conspiracy to reduce the lives to 1000 hours. Watch it here.