The file is never fully yours — it arrives in pieces as you watch and is discarded behind you. Stop paying and it stops arriving.
The drawing that proves the sentence above. It is the same card that is in the book.
Think of it as
drinking from the tap rather than filling the tank.
For example
You watch a three-hour movie and your phone has no more storage used than before. Nothing was kept; it flowed past you.
This is one card out of 275.
The hundred words you meet most are free — the whole set, animated, in one file that works with no internet.
Volume 1 has all 275 in fifteen chapters, with Staying Safe the largest chapter on purpose.