Things always evolve.
Without much thinking on it,
it feels like haiku,

written more strictly,
don’t break up separate thoughts
on separate lines.

On the other hand,
a sonnet is much more strict
without doing this.

The stricture of both
would yield very great pressure
when mixed together.

But nice round numbers
of haiku would never fit
Inside a sonnet.

It’s really too bad
because it would be awesome
if that were the case.

Instead, you must write
eight haiku that are complete
and then you are stuck

with four syllables.
Then your sonnet has to end
with an extra word:

“Etcetera.”