The next big jump will occur when Algore finally takes the big leap off the ledge...
Which means that most of the global water is now in the ocean. which further means oceans won’t rise, but can only recede in the next cooling period. New oceanfront property.
When you read the phrase “(may) happen, have occured, take/took place, be seen, could be seen, etc...... Stop reading! It’s not science.
It’s a good thing the Bølling-Allerød period happened long before humanity needed to know how to pronounce it correctly.
I would have been shocked if they found the level change had been gradual. Earth history doesn’t seem to involve much gradualism.