Photo: Is the cat going up or down the stairs?

This photo had be going viral online and I need an answer from you.Is the cat going up or down the stairs?

Technically Incorrect: An image of a cat on the stairs has captivated the Web and divided lovers and families. It needs an academic to sort it out.
Should you be unaccountably intelligent and therefore have missed this global schism, the cat image was first posted to 9Gag.com. It then hurtled into the world, with some believing that, quite clearly, the cat was descending and others thinking these people were three legs short of a tabby.