Ok i dont want to give any spoiler here, i will discuss this in class. My point is often we look but don’t see, and we see only what we are looking for with what is already in our mind.
What do we report we see here ? A bird or a rabbit?
There are 2 8’s here quick can you spot them?
Going up or coming down?
There is no upturned triangle drawn, it is our eyes that construct it from this diagram.