The discussion centers around the fascinating dynamics of internal ocean tides, characterized by significant vertical displacements of water, reaching tens of meters. A commenter with expertise in tidal interactions notes the complexity of Earth's tides, influenced by the unique shape of ocean basins and high dissipation rates. They highlight how internal tides could play a crucial role in ocean dynamics, despite their often subtle local effects due to long wavelengths (50 to 100 km). The potential implications of these internal tidal currents on underwater objects, such as fish and submarines, raise questions about the currents' power and influence in marine environments.