Earlier quoted context omitted.
Yeah I did some math on that too but it's a bit more complicated than that. First of all, I don't trust a new fridge these days to last 10 years but I can easily see this one purring for another 20 with minor repairs. Secondly, this is a combo fridge+freezer unit, with 2 compressors. New ones only seem to have one compressor, which makes them somewhat more efficient but if it dies, both my freezer and fridge die with…
Perhaps.. but lets say in 10 years efficiency goes up another 30%. So yes even if your current fridge COULD last 20 more years, with efficiency gains the best thing for the environment COULD be to melt it down for scrap and get a newer model. To me this is the really interesting part in all of this. If there was no efficiency gains generation to generation.. say a piece of clothing.. seems pretty obvious to make slig…
Those old cars could be made as efficient as new ones by replacing every part in them other than the chassis. That's prohibitively expensive now, but mostly because there's no standard for engine compartment size and mount point locations. If I could order a "Type 2A" replacement engine instead of a "year T brand X model Y" replacement engine--or even get a 5-years-used-and-refurbished "Type 2A" engine from someone upgrading their "2011 Brand M Model N" commuter sedan, and put it in my "2001 Brand X Model Y" commuter sedan--that would solve a lot of the vehicle obsolescence problems. Moving mechanical parts wear out a lot faster than fixed structural parts. Why throw them all out at the same time?