That seems to go against the points earlier about how to a very advanced civilization, the concept of resources is basically nonexistent (due to self-replicatin

That seems to go against the points earlier about how to a very advanced civilization, the concept of resources is basically nonexistent (due to self-replicating AIs). And the fact that this galaxy has been around for 10 billion years. The way everyone in this comments section is talking, it seems like humans will be able to colonize (or sterilize) the entire Milky Way in a mere tens of millions of years. Clearly this is wrong, or else it would have already happened if it only would've taken 1% of the lifetime of the Milky Way to be colonized. That to me is indication that the Dark Forest is incorrect.