

The sequencing of events set up by trump team, getting Ukraine to agree first, benefits putin - while he delays answering he can still initiate some new offensive, but if Ukraine now makes any big surprise move that starts regaining territory, Russia can play the ‘agree to ceasefire’ card to stop it.
Well it’s extremely predictable - only dependent on cycles of the moon (and sun). In a specific location there are slack periods every six hours or so, but the phase of the waves shifts as you move along the coast a bit (not too far, on the scale of France) so these could be smoothed out by combining power from multiple locations.