User blog comment:Aghostintheboat/The Official Roleplay Room/@comment-10700122-20140701134252/@comment-27797576-20140708235216

And to stop a 2000 cm bullet going through the same sheet, you'd need about a cruise liner full of people in magic.(which they don't have, they may have about 200-500 people, but they would need at least 2000 people.)(I didn't take into account the kenetic velocity on the first, but on this one I did.)