Proof: Microsoft's How Old Do I Look app is wildly inaccurate

Age may be just a number, yet, everyone knows you should always tread carefully when guessing someone's age. But looks like Microsoft missed that memo.

Microsoft-s-gender-age-prediction-tool-is-wildly-inaccurate-Photo-Howold-net

Age may just be a number, yet, everyone knows you should always tread carefully when guessing someone's age. However, it looks like Microsoft missed that memo.

In case you've been living under a rock, an age-guessing app is moving through Twitter and Facebook feeds like wildfire. Microsoft has shared a demo of a new web app, how-old.net, which guesses your age from a photo. It also guesses your gender.

But social media peeps (us included) are not impressed.

The innovative piece of technology and latest internet craze has turned out to be just a good way for people to have fun and waste time trying to outsmart a computer. Provide how-old.net with a well-lit, flattering photo and it usually comes up with a fairly accurate result - give or take a few years. But mostly, Microsoft's algorithm suspects you as being much older than you really are.

To test the app out, we asked it to guess the age of a bunch of celebs. And here's what we found.

Albert Einstein died when he was 76-years-old. He couldn't possibly have used his theory of relativity to extend the longevity of his life, right?