They say that everything changes. Some say that everything is change.
Is that true?
Most of what we know won’t be the same after the sun blows up. (Will it?)
Make a list of about 10 things that you are pretty confident are not going to change.
Then comment on a few items on the list. Explain what would have to be different in order for one of these things to change. Tell how that one change might change other things in the world.
You can find a more detailed version of these instructions here.