How Many Watermelons Are In This Picture? 90% OF PEOPLE GET IT WRONG.

the opposite.

When viewers believe the challenge requires little effort, they are more likely to trust instinct.

The watermelon puzzle benefits from that expectation.

There is no complicated setup to distract the viewer.

The challenge rests almost entirely on one hidden assumption.

If that assumption is noticed, the puzzle becomes easy.

If it is missed, continue reading …