The lack of memory issue is already being solved architecturally, and ARTEMIS is a prime example. Instead of relying on the model's context window (which is "leaky"), they use structured state passed between iterations. It's not a DNC per se, but it is a functional equivalent of long-term memory. The agent remembers it tried an SQL injection an hour ago not because it's in the context, but because it's logged in its knowledge base. This allows for chaining exploits, which used to be the exclusive domain of humans