It sounds like demonic smoke belching up from the center of the earth. It sounds like dim echoes of dark rituals reverberating out of the mouth of a cave. It sounds like bubbling swamp-glop with visible swirls of blood. You can describe Philosophical Collapse, the new album from the Boston-based band Innumerable Forms, in regular music-critic terms, as a record of dark and reverb-heavy death/doom metal, but why? It’s more fun to just close your eyes, let the evilness wash over you, and talk about whatever images the music conjures up.