Full Idea
One argument for the dynamic theory of time is that time is, obviously, asymmetric, and as static theories can't account for this asymmetry, we ought to posit temporal passage to explain it.
Gist of Idea
Static theories cannot account for time's obvious asymmetry, so time must be dynamic
Source
Baron,S/Miller,K (Intro to the Philosophy of Time [2019], 5)
Book Reference
Baron,S/Miller,K: 'Introduction to the Philosophy of Time' [Polity 2019], p.121
A Reaction
The B-series view (unlike the C-series) asserts that there is an order from past to future, but it offers no explanation of that fact. Physicists love to tell you the order could be in either direction, But why an 'order' at all?