Web Accessibility Checklist

User Characteristic	Accessible Design
Unable to See	Code all images with ALT text
Unable to perceive colors	Avoid using color alone to convey information
Unable to use mouse	Be sure all website features can be accessed using keyboard
Unable to hear	Add captions to multimedia
Prone to Seizures	Avoid flashing content
Easily Distractible	Keep design simple

The Alligator Paradox

An alligator, who has stolen a child, promises the parents of said child that it will be returned if and only if they correctly predict what the alligator will do next.

	"You will give the child back"	"You will not give the child back"
The alligator gives back the child	The prediction is correct, and the alligator keeps his word.	The alligator cannot follow his own rules.
The alligator does not give back the child	The prediction is incorrect, and the alligator keeps the child.	The alligator cannot follow his own rules.