Convert the text of any website to a language that will challenge your brain. Click the Einstein button and see if you can still read the text. You will be surprised that after a few moments your brain will adapt and you will be able to read normally again.
Where did I get this idea:
I saw a t-shirt with the following text:
7H3 M345UR3 0F 1N73LL163NC3 15 7H3 481L7Y 70 CH4N63.
4L83R7 31N5731N