[GreenPencil7]

I like that we moved from things to philosophy. That's exactly what the project I'm building is about. I see that the pain I described here is shared by all of us. It doesn't matter what the item is, where we live, or what language we speak. And at this point I understand that I can't solve the whole problem. But I can solve it using one specific item as an example. I want to make a T-shirt that won't change after 1, 5, or 20 years. And every time it wears out, you can buy a new one and it will be exactly the same. No "discontinued." No "we quietly changed the material."

How can this be done technically? I'll explain using color as an example. If I buy yellow paint today, it will be different from every manufacturer. A color passport, with a recorded spectral curve, allows the color to be fixed. The factory mixes the available color pigments to match the color passport. This is theory. Do we get that exact same T-shirt color after 1, 5, or 20 years? I think yes. Are we dependent on the weather, the country, or the manufacturer? I think not.

Does this engineering solution answer the philosophy I'm talking about? I think yes. And I'm looking for people who need a T-shirt like this. )