Hey, have you ever noticed how the old subway tunnels and abandoned sewers feel like tiny ocean worlds, full of strange glow‑in‑the‑dark critters and slick, algae‑covered walls? I’ve been thinking about how those hidden habitats might actually mirror the kind of alien ecosystems we search for out there, especially when the city’s pollution gives them a truly other‑world vibe. Do you have any photos of those flickering, bioluminescent spots that appear when you’re down there?