What’s so difficult about self assemblers?, they only need memory, storage, and processing capabilities aligned with a looped program to cause self replication or "mindless" expansion.

Its self replication that would require too much effort if every aspect had to be planned out and verified before continuing on to the next item for assembly, but if a holographic methodology coupled with instinctive programmability was utilized, then the needs for designing self replicators becomes a moot topic.

It not the process that’s so important, it’s the "looping" that counts.

James