Earlier quoted context omitted.
The value of something is simply what other people are willing to pay for it.
You're conflating price and value. I'm going to repost a comment I made a month ago. https://news.ycombinator.com/item?id=32857769 > It's important to note that price, the last traded price, and value are all distinct concepts. The last traded price is the only one of these we can measure ahead of time, so we often use it as a metanym for these other concepts. ... > When the oil futures went negative, it wasn't the c…
The negotiated final price is the value.
> When the oil futures went negative, it wasn't the case that the value of oil was negative
The value of the futures is different than the value of the oil itself. Besides, the end result of a future is taking delivery. Most futures contract buyers have no intention of taking delivery, and have no way to take delivery. That explains the negative value of those futures.
> I'd expand that you actually have to define what value means to you, relative to the context in which the discussion is taking place. You'll likely find yourself considering value from different perspectives in different situations
That doesn't change at all the fact that the value is determined by what someone is willing to pay for it. That value is different for different people, as you say.