> Arguing otherwise to me is an indication that you think either the material in question is not actually scarce

The material in question is ingenuity and creativity. That is the real driver of economic growth, not some material

I don't think the input has to be free or even go down in price. Just create more value. For instance, consider cars. They haven't gotten cheaper despite creating a lot more value. They're just better. More efficient, safer, more reliable, faster, etc. Creating value doesn't necessarily mean pushing prices down.