There is nothing we own and everything we leave behind after death is also temporary. Time changes everything, so why not think of our day as the unit of life that we get in the morning and ends at night? What I accomplish that day is what counts for me.
Paypal strategy to get the ID:
1. Ask the user to sign up.
2. Pretend everything is complete.
3. Wait for the user to get a payment or money.
4. Block the account and ask for the ID.