[TMK]

I find this quote totally wrong "Experienced programmers know that in software, there is no material waste like in carpentry."

There is waste of electricity the more time you waste on writing bad code. This wastes electricity and the materials used to generate it. Even though this is really small and you do not notice it anywhere else except in your electricity invoice.

Another material waste is to build hardware and software can not be used without hardware. Building computer parts does create waste when the parts are created this same happens when you saw a wood plank. Even if you use the plank you cut you have wasted the amount of wood your saw cut out. Basically sawdust is in this case the waste, but I am not certain how much building hardware will create dust, I think it's really minimal, but it's still waste of materials.

I wasted quite a bit of electricity by writing this meaningless post.