@havoc Hell yeah, interoperability would be the biggest thing. A big gripe I have with most modular designs is that they are modular in their own ecosystem, but having a modular framework gives the guidelines enough to be able to have things work interoperabily, while also not needing to fit a need super strict standard or aesthetic.

Thankfully most stuff like screws are to a standard (for the most part) and can be reused. Plenty of proprietary stuff can't be reused though, especially if it was a planned obsolescence situation. But even then, we can look at it instead of broken, as just feedstock to use and remake into something else. Compared to just saying "eh fuck it it's broken", buying a new one while the old thing sits in a landfill for 500 years.

I've seen some amazing work by people making 3D printer filament recyclers that can turn some plastic bottles into 3D printing filament. Most of the same idea applies to most plastics. So when you print an object, and don't need it or it isn't repairable, chuck it in a shredder, melt it back down into fillament, make something new. No waste, no shipping, less impacts to the ecology. Way better than what we got going right now.