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Is it possible for intelligent alien life to arise on a world without any oil/gas/coal reserves (maybe they don’t have the equivalent of plankton, or maybe they
by irrational 5y ago
Is it possible for intelligent alien life to arise on a world without any oil/gas/coal reserves (maybe they don’t have the equivalent of plankton, or maybe they do, but bacteria that could eat the plankton evolved much earlier)? If so, would they be forever trapped on their planet, never able to go through an Industrial Age and eventually achieve rocket flight? Maybe this is one explanation for why no aliens, so far.