Mechanical workings of Big Ben clock

The video transcript begins with a series of unrelated thoughts and phrases, followed by a more focused discussion on the concept of gravity escapement in mechanical clocks. The speaker explains that every mechanical clock has an escapement mechanism, and specifically highlights the gravity escapement, contrasting it with the deadbeat escapement.

What does the phrase 'every mechanical clock has an escapement' imply?

How does the text differentiate between different types of escapements?