Every consumer who has a chance to read this article can reach clean water. I'm sure these consumers also have a refrigerator. To freeze an ice cube in the fridge is an easy process. You put some water in an ice tray and left it in the freezer. Ta-da! You have lots of ice cubes!

Why do we pay money for ice cubes on markets if it is easy and cheap?

The answer is somewhat tricky. We must first understand the "value proposition" of a product.

According to Wikipedia, a value proposition is a promise of value to be delivered, communicated, and acknowledged. It is also a belief from the customer about how value will be delivered, experienced, and acquired. It is a prospectus of a company that gives the customer the reason to choose their product or service.

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