Advertise that your Sunday Mass is only 20 minutes long and people will drive an hour to get there.
This hardly leaves time for any silence.
The mere size of the sanctuary at St. Sebastian helps fight against this. When the first reading is done, it just plain takes a little while for the cantor to make it to the microphone. Voila! Pre-packaged silence.
Of course, most of us American HATE silence. It is time being wasted when something productive (or at least entertaining) could be accomplished. Sitting? In the quiet? With nothing "happening?" Not so much.
This makes paragraph 56 perhaps one of the most neglected (and under appreciated) paragraphs in the whole GIRM. It says, "The Liturgy of the Word (LOTW) is to be celebrated in such a way as to favor meditation." Be honest, how many people, when thinking about what happens at Mass, say, "We go there to group meditate on God." Sing? Yes. Be entertained? Yes. Listen? Yes. Read, sing, shake hands, take up gifts, if you're lucky pray along with the Mass? Yes. But meditate? Never heard anyone say it.
"Haste," it says, "is clearly to be avoided." So much for a 20 minute Mass. (How do they even do that?) Periods of brief silence are to be introduced for example before the LOTW begins, at the end of the readings, and at the conclusion of the homily. (I think this makes the Catholic Mass startling unique from much of the rest of the Christian world.) This is so that those who are there to pray and exercise their priestly ministry may have a moment under the guidance of the Holy Spirit to digest what they heard and so remember it.
The periods of silence are something to be used, not endured. Something IS happening there if individuals take advantage of it. For example you might ask yourself, "What stood out in that reading for me?" The celebrant may go in an entirely different direction with his homily, but something that was meant to touch you will still come in to your heart.