The Standing Drain

A cuckoo lays its egg in another bird's nest, and the host raises it at its own expense.

Brood parasites like the common cuckoo do not build a nest. They lay an egg in someone else's, and the host bird incubates it, feeds it, and often loses its own young in the process, sometimes pushed physically out of the nest by the parasite's chick. The host gets nothing durable back. When the season ends, it is exactly where it started, minus what it spent.

The relationship that extracts recurring value and leaves nothing behind when it ends.

Not every embedded vendor is building toward integration. Some relationships are structured, whether by design or by drift, so that the client pays continuously and owns nothing at the end of it. No method transfers. No capability compounds inside the client's own walls. The bill is the entire relationship.

This is the least defensible position in the taxonomy once a client can see it clearly, because AI is precisely the tool that makes the comparison visible: what would it cost to build this, versus what have we paid to rent it with nothing to show.