Moore’s position, staked out in this essay on magic as well as the magic essay from Dodgem Logic 3 (which I think is a better version of the “Fossil Angels” essay, and extends the purpose of magic from art in particular to creativity in general), is that that magic is a process that takes place probably in one’s own mind and doesn’t confer the power to fulfill wishes. For example, in Dodgem Logic he wrote that using magic to try to get money handed to you was pointless. Instead, you were better off using magic to try to find some creative way to actually earn some money. He claims to have seen visions of gods, but admits they could very well be hallucinations. There’s not much room to debate a guy who says magic can’t fulfill all your wishes and that he could be tripping balls mad.
Biologist and noted atheist blogger PZ Myers seems to agree:
Moore has an affinity for a 2nd century oracular sock puppet, but he doesn’t worship it. He believes in magic, but he doesn’t believe in the supernatural. He also doesn’t like religion. I agreed with almost everything he said 100% (although he did speculate a bit about the absence of explanation for memory, which he thought was a mystery because there are no changes in the structure of the brain that last for more than a few weeks, which is total bullshit, and he wondered if the purpose of junk DNA was to store memories, which is bullshit on fire. But, OK, the rest of the talk was mostly fun.)
Moore is a writer, and his explanation was basically that the weirdness was to spark creativity; for instance, he talked about staring into a quartz crystal and seeing visions, but he was quite plain that it wasn’t supernatural, it wasn’t the crystal, it was his own mind generating and imposing ideas on what he saw. And that’s all right with me — it fits very well with how I see science functioning.
Actually, I think if there’s anything to debate Alan Moore about it’s whether what he describes as magic is truly “magic” at all. But I’m not particularly interested in having that debate, and I doubt he really is either.