Is this a factual question about our past or an invitation to solve anthropic puzzles by playing Civilization? In a world where all islands are of type 1 you will always anticipate a disaster ahead but never actually see one. Does this tell us anything about anthropic reasoning?

Now that I think about the SIA, it sounds pretty funny. The possible world where trillions of aliens will contact us tomorrow is more populous than the possible world where we are alone in the galaxy, therefore...? For extra fun, note that this reasoning will work just as well tomorrow. Similarly, Katja's interpretation of the SIA seems to imply that each passing day without a disaster brings us closer to total collapse. Funky stuff!