> That is to say, a mainstream phone’s production is so optimized and streamlined, that the weighted average environmental impact of making 10 more (e.g. iPhone

> That is to say, a mainstream phone’s production is so optimized and streamlined, that the weighted average environmental impact of making 10 more (e.g. iPhones) is significantly less than the weighted average environmental cost of making 1 Fairphone. I agree that the lack of repairability requirements and the sheer volume of production make it plausible such optimisations could have happened. But we know neither whether they happened, nor the scale of the benefits. Unless you're Tim Cook I guess, in which case bring back iPhone 5S form factor.