50 years ago, in "The Mythical Man-Month" Fred Brooks was already discussing the cost of cloud based solutions.

> Since size is such a large part of the user cost of a programming system product, the builder must set size targets, control size, and devise size-reduction techniques, just as the hardware builder sets component-count targets, controls component count, and devises count-reduction techniques. Like any cost, size itself is not bad, but unnecessary size is.

And the why of Agile, DDD and TDD:

> Plan the System for Change [...] Plan the Organization for Change