Whenever anyone asks me what super power I'd really like to have I always tell them the power of invisibility. Imagine how cool it would be to be totally invisible and to go unnoticed in day to day life. Obviously the first thing any red blooded male would do is hot foot it into a swimming baths or gymnasium and hang out in the girls locker room. Sure it makes us sound like a bunch of perverts but let's be honest here - it's every guys dream and some girls too I imagine. But being invisible has its downsides too and thanks to science those downsides are far more annoying than you might think. One of the biggest problems with invisibility is that not only would the general populace not be able to see you you in turn would not be able to see them meaning any chances of looking at hot naked women are vastly reduced. You see in order to be able to see things light must be reflected from an object onto your retina. If you're invisible then light does not reflect off of you but passes through you as if you were not there. In turn light would not be able to reflect any kinds of images back at you rendering you completely blind. A massive bummer I'm sure you'll agree. Another big problem with invisibility is the extent to which you and the objects around you are affected. For example do you need to strip down to your birthday suit every time you want to disappear or will your clothes vanish also? Can you be exposed by different means such as water or paint or flour? Are the things you eat and drink invisible too or will they be on show to the world as some bizarre floating vomit? The questions are too vast for this one to ever be an effective super power.