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-rw-r--r--requirements/assumptions/ass-020.md21
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# ass-020
-Suppose a user can create, update and delete their buckets and pipes, and
-suppose that when they do so, they see a prominent number which they know
-summarises what the long-term difference between their incomings and outgoings
-will be if they stick to the intentions expressed in their buckets and pipes.
-Then the user will create, update and delete their buckets and pipes so that the
-number is close to zero.
+Suppose that:
+
+- The user can create, update and delete their buckets and pipes
+- When the user creates, updates and deletes their buckets and pipes, they see a
+ prominent number which they know summarises what the long-term difference
+ between their incomings and outgoings will be if they stick to the intentions
+ expressed in their buckets and pipes
+- When the user creates, updates and deletes their buckets and pipes, they see a
+ prominent number which they know summarises what the difference between their
+ incomings and outgoings has actually been in the past
+
+Then the user will create, update and delete their buckets and pipes so that:
+
+- The first number remains close to zero
+- The second number remains small and positive