Your discussion with me has not been about sea ice, but about glacial ice. Please stop insulting yourself by not recognizing the difference.<quoted text>
In other words it is an inconvient truth that you need to avoid. Dispite the fact that it is proven fact that water when freezing expands, that ice floats as the result of that expansion. That you could fill a glass with ice and then water all the way to the rim. Come back later and you will discover the level of water has gone down.
As for your experiment with displacement of water, the correct analogy here would be to suspend an ice cube over a glass of water and see how much higher the level rises as the cube melts.