Great!

To capitalize a word, the first letter should be uppercase and the rest, lowercase. Your code only does the first half.

Please read the error message and debug your code, it's not right and it fails all random tests.

No it doesn't. Please read the error message carefully:

                                          v
"How Can Mirrors Be Real If Our Eyes Aren'T Real" should equal 
"How Can Mirrors Be Real If Our Eyes Aren't Real"
                                          ^

They're not the same. A problem with your code is not a kata issue.

My code also works, lol. It hasn't been corrected yet)