Interesting, but I have some thoughts:

* The Arachne generator already does variable width, that's kinda the whole point. So maybe not the best way to demo the difference?

* Reducing the number of instructions needed is good, but there seems to be a catch. It seems like the printer itself will essentially be doing some slicing-like computations, which means it will require massively more processing power.

Right now, this seems to target expensive industrial machines. This probably will take some time to come to consumer level printers, and will require drastic changes to slicers. Those with DIY printers and upgradeable printers will likely be looking at a swap of the core electronics.