Q: How should I conceptualize a right fold vs a left fold? Should I conceptualize a right fold as "folding the list to the right" or as "folding a list from the right"?
In other words, does a right fold go from left-to-right or from right-to-left?

A: Right fold goes from right to left.
Left fold goes from the left, like you read a text - from left to right.
