Disclaimer: I am not a physicist. > the consumption of electrical energy requiring the transfer of mass, however small Does precedent talk about transferring

Disclaimer: I am not a physicist. > the consumption of electrical energy requiring the transfer of mass, however small Does precedent talk about transferring mass of electrons? Otherwise the transferred energy also has mass, via mass-energy equivalence. > but in this particular argument (on ownership of virtual goods, like a sword in World of Warcraft), the issue of the mass was even more pertinent. This on the other hand is on a bit more tenuous grounds. In theory you don't actually have to move energy (and thus mass) around to move information if you use physically reversible operations. But all practical computers use irreversible operations, which means information is sent by expending some energy, this is obvious in sending photons down a fiber or radio waves being able to power a lightbulb. https://en.wikipedia.org/wiki/Landauer%27s_principle https://en.wikipedia.org/wiki/Landauer%27s_principle