It seems to me that some domain-specific computations are better modeled with the ability to return multiple values. For example, digital signal processing - a

It seems to me that some domain-specific computations are better modeled with the ability to return multiple values. For example, digital signal processing - a handy abstraction in DSP is the idea of having "blocks" and simply connecting the outputs of some blocks to the inputs of other blocks. A block in this model can be viewed as a function which is executed continuously.