Guess all good movies leave a lot open to interpretation, but difficult to do it and be good.

Like that "Rebel Moon" on Netflix was how to NOT do it, with tons of stupid exposition spelling out stupid details that didn't make any sense.

Versus "American Sniper" that was so evenly portraying all sides, that Right leaning people thought it was a liberal movie, and Left leaning people thought it was Right Wing propaganda. It was all so well done you could read into it a lot of your own feelings.

So "Her" was about the danger of technology. And at the end there were some scenes that you could read into how a lot of people were falling for this phone app and things were going downhill. But, it wasn't clear cut, the movie is really good at splitting the difference on how the app was also making people be happy, and was helping them.