Many programmers don't need to think about algorithms because what you get from a library is often good enough, say a simple sort-function. But it is true that

Many programmers don't need to think about algorithms because what you get from a library is often good enough, say a simple sort-function. But it is true that while most programming can be seen as trasnforming one data to another, it is the algorithms that do that transformation, such as when transforming a list to a sorted list. But an algorithm can be packaged into a function so that you only need to know what the function does, not how it does it. Data can not similarly be "encapsulated". Except you could say that getter-methods are a way of encapsulating data.