To do something that is not normally allowed but is also not explicitly prohibited.
Not to converge: to have no limit, or no finite limit.
To separate, to tend into a different direction (from another line or path).
To become different; to run apart; to separate; to tend into different directions.
To run apart; to separate; to tend into different directions.
To become different, to separate (from another line or path).
Both stories start out the same way, but they diverge halfway through.