Can you find the curved line in this optical illusion? It isn't easy

Do you have a great eye for detail? Then spotting the curved line among the straight ones in this illusion should be too hard for you.

Wait, so is this optical illusion straight or curved?

Funniest optical illusions that will make you laugh AND test your brain

Water Level Demonstrates The Dip of the Horizon and Proves Earth's Curvature –

Can you make your brain *not* see this circle illusion?

30 Optical Illusions That Will Make Your Brain Hurt

Find the hidden faces in these 7 tough brainteasers

Mind-bending optical illusion challenges players to spot the curved line & it'll drive you mad

Auto Control Points Don't Go Away After De-selecting Rhino 8 - Rhino for Windows - McNeel Forum

Bad Astronomy, An optical illusion that will zigzag your brain

How to draw a curved line with only straight lines/ really weird optical illusion