If the system is imbalanced, and has been unable to address development requirements in past Rounds, now is the time to do it, not on a 50-50 basis. If a single undertaking is accepted, then it must include the idea of reasonable balance. On S and D treatment, Ricupero challenged the view of some that it should be a thing of the past. Knowledge and technology were now more important than labour and access to technology and knowledge is now more and more difficult. S and D is about learning the process of development.
Competition depends on that.
In the old GATT there was a mistaken view that competition only requires clear rules and an impartial arbiter. But competition requires preparation, education, training. S and D is about how to learn to compete. No one imagines a lightweight should fight a heavyweight in boxing. We must learn by stages, with technical support.