This diary entry made me think:
"I began this process of remembering every day that passes over 3000 days ago.
I continue to pin an image to my mental calendar at the end of every day as a memory tag.
But as I’ve been recording here, it has become increasingly harder to refresh the images.
Several times I’ve thought of giving it up as an experiment that has reached its natural end.
But I haven’t. During the current coronavirus pandemic lockdown, the memory tags mean I can distinguish between days with few distinguishing features and mark the passage of time. Otherwise they would just be a blur."