I think the key is "world".

If you yourself can cut a tree down and do whatever else to make a piano, there's no world created by humans. It'll take you a while but in the end there's only you and your shiny new piano and nature.

If there is a distributed process with countless people and organizations using intricate mechanisms to build components of mechanisms that build mechanisms that extract materials for building mechanisms for preparing different components of a piano, never seeing or knowing the whole end result... that's a world. If you can click a button and have this thing show up at your house and not even know about everything that goes into it (much less do it yourself)... that's a world.

>If there is a distributed process with countless people and organizations using intricate mechanisms to build components of mechanisms that

And then someone will go on being pedantic and bring forward bees and ant colonies and the like. Let's call it "a matter of degree/scale/breadth" this might shut them up!

I was going to point out that it is kind of a spectrum but decided to try and see what I can make of binary differentiation. It's not great, too vague, writing doesn't like that and favors black and white thinking and neat causality chains, but few are able to see it as a limitation of the medium instead of how things actually are.

Only under a naive mechanistic non-contextual machine-like reading :)

> naive mechanistic non-contextual machine-like reading

There's so many modifiers to 'reading' that I, along with probably many readers, are unsure what your trying to express.