What if all data wiped in the world

if all the data was wiped, how would it affect you?
e.g. credit card, savings, mortgage, …
your earnings and savings are gone, your debts are gone, …

what about ID, medical data, …

what if a lot of data was wiped, but not vital things like finance and ID.
only personal data.
e.g. all your repos, all your digital notes, the story you wrote, the art you made.
wiped like a chalk board

What if you lose your friends contact details?
Some close friends would be easy to reach out to, but what about friends in other countries?
Maybe you forgot their last name, how will you find them again?

this was inspired by talking about how the sun could cause an EMP
philosophy