Polls open in critical Polish election

What is the significance of the word 'Yes' in the context of the text?

How does the duration of 500 milliseconds relate to the response given in the text?

In what scenarios might a simple affirmation like 'Yes' be used effectively?

What can be inferred about the context in which the response 'Yes' was given?

Discuss the implications of a brief response like 'Yes' in communication.