Rephrasing and reflow

doc/Type/Backtrace.pod6

@@ -6,12 +6,23 @@
 
     class Backtrace {}
 
-A backtrace shows the dynamic call stack, usually leading up to a point
-where an exception was thrown.
-
-It is a List of L<Backtrace::Frame> objects.  Its default stringification
-excludes backtrace frames that are deemed unnecessary or confusing, for
-example routines like C<&die> are hidden by default.
+A backtrace contains the dynamic call stack, usually leading up to a point where
+an exception was thrown, and is a List of L<Backtrace::Frame> objects.  Its
+default stringification excludes backtrace frames that are deemed unnecessary or
+confusing; for example routines like C<&die> are hidden by default. Being a
+list, you can also access individual elements.
+
+=for code
+sub zipi { { { die "Something bad happened" }() }() };
+try {
+    zipi;
+}
+if ($!) {
+    say $!.backtrace[*-1].perl;
+}
+
+This will print the last dataframe in the list, pointing at the line where it's
+happened.
 
 =head1 Methods