shuffle each entry comparison

main.go

@@ -98,6 +98,14 @@ func main() {
 	go func() {
 		sort.SliceStable(entries, func(i, j int) bool {
 
+			// Towards the end, sort.SliceStable has the pattern of putting one
+			// entry in the top button all the time
+			// Maybe shuffle them
+			shuf := (rand.Int()%2 == 0)
+			if shuf {
+				i, j = j, i
+			}
+
 			mainthread.Wait(func() {
 				comparisons++
 
@@ -108,6 +116,9 @@ func main() {
 				ui.b2.SetText(formatButtonText(entries[j]))
 			})
 
+			if shuf {
+				return !<-ret
+			}
 			return <-ret
 		})
 		active = false