Is it possible to make querySelectorAll live like getElementsByTagName?

Question

getElementsByTagName() has 2 great features: it is fast and it is live. But what if I want to get p strong. Of course I could refine a selection using

Answer 1

I don't think it is possible because subsequent changes of the DOM does not reflect in the NodeList object returned by the querySelectorAll() method.

Selectors-api W3C