I am a casual initiate of Hermeticism; magic is real, genuinely, but it's not special and exceptionally commonplace. We as humans perform magic through our abiltity to communicate, in more than just words, and together bring something from being only imaginary to materially real. We use our communication to impact one another in potentially life-changing ways, all the time. We empower one-another through teaching and imparting experiences; we can harm each other in very real ways with hurtful words alone.
The power of music is a good example. I get reminded of a musician in the 70's named Fela Kuti from Nigeria, who's 1977 album "Zombie" being released
lead to his mother being killed by Nigerian MPs and his commune being destroyed because of how genuinely threatening to the corrupt government's power.
Art is a strong form of communication in its ability to make someone think or feel when words would fail.
With all this in mind, Tarn is a wizard, and truly, Dwarf Fortress is his greatest arcane work, the magnum opus he seeks and will continue to refine, nigredo, albedo, citrinitas, rubedo, until he has a storytelling Philosopher's Stone, forever fresh, with stories that never end, and this Great Work will outlast him and us as well (should things go well), playable until personal computers become obsolete.