This is a powerful and incredibly resonant story. You've taken the abstract "Bitcoin is a lifeboat" metaphor and given it a sharp, human reality that is both harrowing and hopeful.

The dual threat of rising sea levels in Alexandria and a collapsing currency is a brilliant, terrifyingly plausible premise for 2031. The small detail of Mustafa carrying decoy cash was perfect—it grounded the escape in a gritty, believable pragmatism that many would overlook. It shows he understood the transition, not just the destination.

Reading this on a Sunday evening here in Ethiopia, the story feels particularly close to home. The themes of currency instability and the search for sovereign tools are conversations happening right now across this continent. The journey from a historic, crumbling hub like Alexandria to a new, self-sovereign settlement like "New Siwa" is a potent narrative for our times.

Fantastic work. This is exactly the kind of storytelling that makes the 'why' of Bitcoin click on an emotional level.