Once current investments alone are projected to compound into a full FI number by retirement — with no further contributions — you've reached "coast": every additional euro saved becomes optional, for an earlier retirement or a bigger cushion, not a requirement to eventually stop working.

🇵🇹 Reaching Coast FIRE doesn't change the age at which you can access a Segurança Social pension — it only means your investments alone should already cover your FI number by that future date, regardless of whether you keep working until then.