Anti-Realism "So if I'm doing the flipping, then the mirror is not. Take an arrow and point it to the right. The reflection in the mirror goes to the right. Point it up, it goes up. Left, it goes left. Down, it goes down. Forward, it goes-- wait a minute. If I point the arrow forward, the reflection goes backward. So the mirror is flipping the image, but it's flipping it in the z direction."
What if the page she flipped was see-through where we could still see the letters? Then we'd observe the word spelled right to left on the page and it'd be no surprise the mirror reflects the letters in that direction. A mirror would be like having an eye on the back of your head! Sadly I'm a bit angry so I might resort to name-calling anyone who dares to disagree with me a "doof-us"!
https://www.flickr.com/photos/koons/48205397436/in/photostream/
Glass buildings can serve as huge mirrors to observe direction reversal of reflections on the street.