Aetna could represent many things.

• A modern version of Hephaestus’ automatons, metal people (& animals) he crafted were as real as living beings. This could mean a “Lars and the Real Girl” romantic or friendship equivalent for Hephaestus, who seems alone.

• Mount Etna is often associated with Hephaestus. It is said to imprison the monstrous Typhoeus, who also arbitrated a land squabble between Hephaestus and Demeter.

• The eyes on screens could be a nod to the many cyclops who worked for Hephaestus in the myths. Eyes also symbolize perception and vigilance, access to forbidden knowledge, and surveillance.