diff --git a/README.md b/README.md
index 9e0632b..865da03 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ The bot will consider an aircraft to be "circling" if:
    degrees in one direction.
 
 2. The centroid of the last 3 minutes worth of positions must be more
-   than 2.5 miles away from all known airports.
+   than 2.5 km away from all known airports.
 
 3. The centroid must be located within the county of Los Angeles.
    (This is just because I don't yet have airport data outside Los
@@ -34,9 +34,9 @@ The bot will consider an aircraft to be "circling" if:
 4. The aircraft must, at the moment of decision, be at an altitude of
    300 feet or more.
 
-5. If an aircraft was previously circling, it must be considered
-   not-circling for at least 30 minutes before it is again eligible to
-   be considered circling.
+5. Once an aircraft is considered to be circling, it will be tweeted
+   about. It won't be eligible to be considered circling/tweeted about
+   again until it stops circling and 30 minutes pass.
 
 There are a lot of weird flight paths that can meet criterion #1, and
 I kind of like it that way. For example, see