The core of nothing is nothing, I got that long ago, thank, you , lol.
I just think if any myth was created, then it changed so much that it is hard to use it to pinpoint in the direction of anything Doggerland.
You must not forget that Doggerland didn't just sink quite fast over the millennia by rising sea levels and isostatic rebound, it actually got flushed by a huge tsunami. Things legends are made of, wouldn't you say so too?
I never claimed it could be the part of the core of a myth, just that it was as valid a possibility as that of any hypothesized myth.
Myths and legends are, by and large, created by a sizeable population of people over extended periods of time. Currently there is no evidence of a sizeable population of people inhabiting Doggerland for an extended period of time and more specifically, during the time of the Storegga Slide. At best, we can surmise that there were groups of hunter-gatherers following animal migrations and only settling in an area for a brief period of time. It's just as likely that anyone living there during the Storegga Slide was eliminated with much of the area and that nothing was passed down in myth and legend.