Makes sense that our brain has instinctual mechanisms to differentiate between force due to gravity and forces due to something else. This type of illusion giv

Makes sense that our brain has instinctual mechanisms to differentiate between force due to gravity and forces due to something else. This type of illusion gives us insight into how it works. Obviously it's visually based. Our brain instinctively rationalizes the force as something other than gravity (rolling uphill) if the visual markers don't align. We tend to think conscious judgement and categorization is part of the executive decision making process of our brain. But this illusion shows that it is not. Categorizing a force as gravity or not gravity is done by a very primitive part of our brain. What people don't realize that these primitive modules extend beyond physical forces to even morals. What you categorize as good and evil is done instinctively by a primitive part of your brain and suffers from identical counterparts to optical illusions that are a part of the vision module of our brain.