Going back to the analogy of the brain's neural organization as a field of tall grass: even after the main thoroughfares have been laid down, it's still possible to find new ways through the bush. Finding a different pathway through the tall grass can be inconvenient, messy, and even scary, so it's something you'll do only if you discover the old paths no longer lead you to places you want to go.
You can still change course. Just messy at first
