Earlier quoted context omitted.
> We often don't need those nice properties in single use products, yet we use it anyway because we don't pay due respect to the long term consequences. Those properties are also used in place of other materials. Gears in devices that were once metal are now plastic which works OK for w while but it's not even close to the durability of metal. The result is the device with plastic gears fails and a new one is made to…
> How many vacuum cleaners, washers, dryers, microwave ovens from the 1970s and 1980s are still in use versus the same devices from the 1990s/2000s? I don't doubt that metal is more durable than plastic, but there's some survivor's bias in that statement. We usually think of 70s and 80s appliances being more durable because we see people still using them. The truth is that we've always had a mix of cheaply made vs du…
Nowadays we make things with a lot more precision and the mechanics will go a lot longer without needing repair. However if anything goes wrong the whole thing needs replacement as it's not designed for repair.