Best for China is she's got effective production chains in many areas that other countries envy but are helpless. From our point of view, income from mid-low-end products is far bigger/massive than high-end's. Getting into 5nm or lower is only to serve unrealistically expensive TOYS that the general public can't afford/don't need. So, no hurry and burn money for it BUT wipe out competitors in our favoured markets then use profits to go for high ends. By then, everyone's out of the way.