diff --git a/main.go b/main.go
index 0d03195..e6b7463 100644
--- a/main.go
+++ b/main.go
@@ -105,7 +105,7 @@ func physics(particleList *[MAXPOINTS]rl.Vector2, particleCount int, particleLis
 
 				// Jede Goroutine arbeitet nur auf Index i → kein Datenkonflikt
 				for l := 0; l < particleCount; l++ {
-					if rl.CheckCollisionCircles(particleList[i], *particleRadius, particleList[l], *particleRadius) {
+					if rl.CheckCollisionCircles(currentPositions[i], *particleRadius, currentPositions[l], *particleRadius) && !(l == i) {
 						particleSpeed[i] = rl.Vector2Negate(particleSpeed[i])
 					}
 				}