A very interesting test of cognition - can you count the basketball passes?
And here is an optical illusion that demonstrates an interesting quirk in our visual perception
Here is a wide selection of fascinating optical illusions
@richardosman Just perfect 👌
Reminder that Hamas are not the Palestinian people, they are a hardline Islamist group that murders its enemies and… https://t.co/iV6eFea2Od
@jlsinc He’s in a Seumas spiral