The Whole Life of a Product
A product's cost to the world runs from digging up the material to whatever happens after it is thrown away. Designers decide most of that at the drawing stage, including whether the thing can be opened and repaired.
What a learner can do afterwards
- List the stages of a product's life from raw material to disposal
- Name one design decision that decides whether a product can be repaired
- Explain why recycling a mixed-material product is harder than recycling a single-material one
- Give one argument that a product was designed to be replaced rather than fixed, and what evidence would settle it
1 · Read
Every product lives four chapters: raw material, manufacture, use, and disposal. The biggest costs to the world often sit at the start, when materials are dug up and made, and at the end, when the thing is thrown away. Take a plastic straw. It starts as oil pumped from the ground, gets refined and molded into a tube you use for ten minutes, then lands in landfill, an incinerator, or the ocean. Plastic does not biodegrade, so it outlasts you by far.
Whether a product can be repaired is fixed at the drawing stage, long before it breaks. Fixable things use standard screws, spare parts you can buy, and published repair guides. Throwaway things are glued shut with parts nobody sells. Every repair stretches the middle chapter: keeping a product ten years instead of two spreads the digging and dumping costs over a much longer life. So repairability is a design decision, not an accident.
Batteries show why mixed materials are trouble. Inside is a bundle of metals, acids, and toxic chemicals pressed together, which can leak into soil and water in landfill. Simple alkaline cells from toys may go in normal trash, though recycling beats that. Rechargeable and lithium cells from phones and laptops must go to a collection point, since they can even start fires in trucks. The metals are worth recovering only if someone can separate the mix safely.
To argue a product was built to be replaced, gather maker's evidence. Can you open it with normal tools. Are spares priced and sold. Do repair guides exist. A glued case, a sealed battery, and missing spares point to a short life by design. And a straw too small and light for sorting machines shows the same logic: easy to sell, nearly impossible to recycle.
Designers fix most of a lifetime cost at the drawing stage, including whether you can open it.
2 · Watch
Take it off screen
Where it sits
Learn first
This opens up
Nothing builds on it yet.
Where this leads
Jobs that lean on this skill. Follow one to see everything it is built on.
8 questions wait behind this lesson, each with its answer explained. Every answer feeds the sky: stars light as they are learned, and dim when it is time to come back.