diff --git a/firmware/util/math/interpolation.h b/firmware/util/math/interpolation.h
index 42586f6aad..cc0f5f191c 100644
--- a/firmware/util/math/interpolation.h
+++ b/firmware/util/math/interpolation.h
@@ -24,6 +24,8 @@ int findIndex2(const float array[], unsigned size, float value);
 float interpolateClamped(float x1, float y1, float x2, float y2, float x);
 float interpolateMsg(const char *msg, float x1, float y1, float x2, float y2, float x);
 
+// _technically_ and _theoretically_ we can support flat line for both bins and values but I am not sure if
+// such a rare case is something we want to support
 template<typename TValue, int TSize>
 void ensureArrayIsAscending(const char* msg, const TValue (&values)[TSize]) {
 	for (size_t i = 0; i < TSize - 1; i++) {