What you see isn't always correct

In life you must have come across various situations when your vision has defied you right ? Let's take the simplest case suppose on a road it's written 66, now one person might see it as 99, which is correct in his opinion, the other will argue that it's 66 and not 99. So what to do now ? simple just refer to the surroundings, there will be a clear hint as to which is the correct side. Let's take another example of water, when you look at it from above, you won't be able to estimate the correct depth. Well at least that can be explained, that light refracts from water, and our eyes can't detect that hence we see a different image.Let's dig in deeper shall we ? When you buy an expensive product, be it anything, your smartphone, computer, vehicle anything. You do as much research about it as possible, you ask your friends, you read reviews, check specifications on various sites. The thing is no matter how much effort you put into knowing the product befo...