Agile as implemented at almost all companies fails to account for the possibility of software with simple observable interfaces requiring extremely complex and

Agile as implemented at almost all companies fails to account for the possibility of software with simple observable interfaces requiring extremely complex and intrinsically non-modular internal design. Most high-end platform infrastructure work looks like this if you are doing it correctly. As a consequence, it becomes difficult-to-impossible to do any kind of hardcore platform software engineering work in most organizations because their model for what successful agile software development should look like doesn't allow for it. There is no appetite for software development where there will be no visible progress for many months and demonstrable functionality is extremely backloaded. A related issue is software that cannot be meaningfully prototyped because any design that is reflective of the desired product has the same order of effort as the actual product, for many of the same reasons. There are certain kinds of high-value software that cannot be built inside most tech companies now because it pattern matches so poorly to the way people think "agile" software development should look like.