In the 1800s, aluminum was more valuable than gold. It was very difficult to produce and it was valued very highly. Then someone figured out a way to extract it from the ore much more efficiently, making it much easier to obtain and much more common. If you had owned a $500 chunk of aluminum, it had that value because of its rarity; other people recognized it as being more valuable because it was more difficult to get. When it became more common, its value could have dropped to $50 (I don’t know how much the price actually dropped, but it was a lot).
Where did the $450 go? Nowhere, because monetary value is based on how much people are willing to pay, and unlike a physical substance it is not necessarily conserved; it can be created or destroyed. This is also how stocks work.
You can also create monetary value by transforming materials into a worked product (think knitting a sweater) or destroying something that took work to make (burning that same sweater). Unlike the stock market though, the price of physical goods is often based on their usefulness rather than speculation, so it tends to be more stable.
An example might be helpful.
In the 1800s, aluminum was more valuable than gold. It was very difficult to produce and it was valued very highly. Then someone figured out a way to extract it from the ore much more efficiently, making it much easier to obtain and much more common. If you had owned a $500 chunk of aluminum, it had that value because of its rarity; other people recognized it as being more valuable because it was more difficult to get. When it became more common, its value could have dropped to $50 (I don’t know how much the price actually dropped, but it was a lot).
Where did the $450 go? Nowhere, because monetary value is based on how much people are willing to pay, and unlike a physical substance it is not necessarily conserved; it can be created or destroyed. This is also how stocks work.
You can also create monetary value by transforming materials into a worked product (think knitting a sweater) or destroying something that took work to make (burning that same sweater). Unlike the stock market though, the price of physical goods is often based on their usefulness rather than speculation, so it tends to be more stable.