A method and system to dynamically display a presentation of a time duration are described. The system includes a processor to receive comments associated with the presentation, the comments arranged in a first ordering, to identify a time reference comment among the comments, the time reference comment including a time reference referencing a time instant within the time duration of the presentation, and to dynamically change an ordering of the comments from the first ordering to a second ordering at the time instant. The system also includes a display device to display the presentation with the comments, the comments arranged according to the ordering.