it's a good question and 1 I don't have an answer for

it's like completely wiped out

imagine a huge rolercoaster in the centre of an amusement park, then that amusement park toplling in to the sea. it would be total devistation for the park management and the guests, and they would lose everything.
now apply that sinario to me

lots of roller coaster track all in place (my memories), then something happens (I don't know what, but something), causing the track to come apart and nothing to remain, their for, the roller coaster can't run

long post, but it gave me a chance to use my obsession with theme parks