Explain concept of 'recursion' to grandma?

So, the base assumption here is that my grandma is totally unaware of any of the programming concepts. Thus, with the above assumption I would like to give the following example.

 

Hey Grandma!, assume that you are standing in a queue of people and naturally you would want to know how many people are there before you. To know the same, you can move to the side and start counting. But like always, you'll be afraid what if you miss your position in the line.

At this juncture, you'll be trying to ask the person before you on how many are standing ahead of him. Assuming he also doesn't know, he'll naturally ask the person before him. This will continue on and on until the very first person gets the question. Now, the first person would say "0 people are standing ahead of him". The second hearing this, would reply to the 3rd, " 1 person is before him". The 3rd will reply to the 4th, "2 people are before me". This process once again gets on and on until the person before grandma knows how many people are before him and replies the same to you.

 

So this way of getting information by repeatedly doing the same thing until a condition is met is called Recursion. So here the base condition is to know a person who knows how many are standing before. Once the condition is met the answer starts flowing back to the caller. Here the caller was you, Grandma.

 

So the actual definition of recursion is, Solving a problem by using a simpler version of the problem itself.