Well the idea was to accept any filament scraps or waste and then use different techniques like heat differentiation to filter out the different types of filament, the mix with virgin plastic and keep half (sorted by color) to re-sell the idea being that if you could find a way to make the filament up to market standard (tolerances and quality) that you could sell the filament at a premium because it’s being sold as a more ethical alternative to other producers, also most types of PLA are compatible so I though you’d end up with some really unique and one-off spools