Read the manual

Josh stopped to think. Maybe he should find out how to use this thing properly before changing anything, just in case it works?

He opens the "instructions" page and reads:

• All rules must be universal in nature

• All rules apply retroactively

• Any rules entered by a user may not be deleted or undone by that user

• New rules may change features of the world but not the laws of physics

• The operation of the app itself may not be changed

• Only one person at a time may have this app