> plentiful durable old hardware I see a few problems in this assumption. Durable: what's the incentive to manufacture durable hardware and how do we maintain

> plentiful durable old hardware I see a few problems in this assumption. Durable: what's the incentive to manufacture durable hardware and how do we maintain it? Example: my laptop is about to become 10 yo and still pays my bills but it's 10 yo in the same way a ship is 100 yo: nearly everything is replaced to keep it afloat. In my case: I got a screen replacement after about one year because of a defective hinge (the initial 3 years warranty paid for it), I replace keyboards myself every 2 or 3 years because I worn the most used (or the most fragile?) keys, I replaced the HDD and the DVD-RW with two SSD (that was a choice but they could have failed by now,) I upgraded the RAM (another choice but it could have failed by now,) I replaced the battery. From the original laptop I still have the mobo, CPU, GPU, fan and heatsink, the main body around the keyboard, the touchpad, WiFI, Bluetooth and all the I/O ports. Plentiful: replacement of failed parts will make devices not-plentiful in a few years. I could keep using the laptop with a USB keyboard and a mouse when there won't be replacement keyboard anymore. I won't. I'll buy a new one instead but in a world of scarcity I would adapt. I wouldn't work around the absence of compatible RAM (I think it's still 2666 MHz) or no more SATA 3 disks (technically it could boot from the USB 3 port). And CPUs and GPUs also fail or become incompatible with the available software. Well, maybe somebody will write a driver for the ATI Radeon X1600 in my previous laptop from 2006. I couldn't update the Linux kernel past a certain 3.x release because I would lose sync. Too bad I won't be around. So, no matter what, there won't be that many available spares because they are consumed in a few years. Nobody will be going to rebuild fabs for old processes: all the 2666 MHz RAM that will ever be manufactured has already been manufactured, unless some critical industry or the military uses it and is paying to keep a fab alive.