Output

What good do big doors do?

That seems like a question

For causal inference:

What probability 

Of good follows, given

The choice to do big doors,

Or, P of (G | do (D))?

Red Pine has translated

A thousand year-old poem

Alluding to a tale

From the Han dynasty

In which a man who built

A big door to seem grand

Died young from overwork.

Big doors did him no good,

But think of the lesson

For all the good it did.

Causation is its myth.