If we could mandate that a product can only be sold if the entire lifecycle is sustainable then technically it could continue. This includes the company taking responsibility for disposal and recycling of anything they produce.

The current model of transferring materials from source, through consumers and then direct to landfill where they sit forever can only end one way.

probably not. it's hard to consume lots of stuff en masse by most of the population. in the developed world, we've already largely moved to service economies and have less than replacement population growth, and so in that sense we've "maxed out" on consuming stuff. that's not to say that we're doing a great job at being efficient and frugal in what we consume, but that running out of resources isn't that big of a problem (for the foreseeable future).

I’d say so yes.