"How many flies did you see?"
1/25
1-4 flies
4-8 flies
9 flies
10 flies
"What did you see at first glance?"
2/25
It's not moving.
It's moving, but slowly.
It's constantly moving.
"What did you see at first glance?"
3/25
A stationary heart with a stationary background.
A stationary heart with a moving background.
A moving heart with a stationary background.
A moving heart with a moving background.
"What did you see at first glance?"
4/25
The background is moving.
A fish is swimming.
Nothing is moving.
"What did you see at first glance?"
5/25
The almonds are moving.
Nothing is moving.