Suppose you built a model of London using Lego-like block which you had carved yourself out of wood. Every building, every sidewalk, every window, door and stairway in all 600+ square miles.
That would be a pretty impressive feat.
Now suppose you designed a single Lego block that then replicated itself into billions more blocks, of all the differing shapes involved, which would sequentially assemble itself (itselves?) into the same model.
Which would be the more impressive feat of Creation??
You’re talking about Intelligent design? Good analogy.